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Smith TA, Zhou L, Ghergherehchi CL, Mikesh M, Yang CZ, Tucker HO, Allgood J, Bushman JS, Bittner GD. Polyethylene glycol has immunoprotective effects on sciatic allografts, but behavioral recovery and graft tolerance require neurorrhaphy and axonal fusion. Neural Regen Res 2025; 20:1192-1206. [PMID: 38989956 DOI: 10.4103/nrr.nrr-d-23-01220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 02/29/2024] [Indexed: 07/12/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202504000-00033/figure1/v/2024-07-06T104127Z/r/image-tiff Behavioral recovery using (viable) peripheral nerve allografts to repair ablation-type (segmental-loss) peripheral nerve injuries is delayed or poor due to slow and inaccurate axonal regeneration. Furthermore, such peripheral nerve allografts undergo immunological rejection by the host immune system. In contrast, peripheral nerve injuries repaired by polyethylene glycol fusion of peripheral nerve allografts exhibit excellent behavioral recovery within weeks, reduced immune responses, and many axons do not undergo Wallerian degeneration. The relative contribution of neurorrhaphy and polyethylene glycol-fusion of axons versus the effects of polyethylene glycol per se was unknown prior to this study. We hypothesized that polyethylene glycol might have some immune-protective effects, but polyethylene glycol-fusion was necessary to prevent Wallerian degeneration and functional/behavioral recovery. We examined how polyethylene glycol solutions per se affect functional and behavioral recovery and peripheral nerve allograft morphological and immunological responses in the absence of polyethylene glycol-induced axonal fusion. Ablation-type sciatic nerve injuries in outbred Sprague-Dawley rats were repaired according to a modified protocol using the same solutions as polyethylene glycol-fused peripheral nerve allografts, but peripheral nerve allografts were loose-sutured (loose-sutured polyethylene glycol) with an intentional gap of 1-2 mm to prevent fusion by polyethylene glycol of peripheral nerve allograft axons with host axons. Similar to negative control peripheral nerve allografts not treated by polyethylene glycol and in contrast to polyethylene glycol-fused peripheral nerve allografts, animals with loose-sutured polyethylene glycol peripheral nerve allografts exhibited Wallerian degeneration for all axons and myelin degeneration by 7 days postoperatively and did not recover sciatic-mediated behavioral functions by 42 days postoperatively. Other morphological signs of rejection, such as collapsed Schwann cell basal lamina tubes, were absent in polyethylene glycol-fused peripheral nerve allografts but commonly observed in negative control and loose-sutured polyethylene glycol peripheral nerve allografts at 21 days postoperatively. Loose-sutured polyethylene glycol peripheral nerve allografts had more pro-inflammatory and less anti-inflammatory macrophages than negative control peripheral nerve allografts. While T cell counts were similarly high in loose-sutured-polyethylene glycol and negative control peripheral nerve allografts, loose-sutured polyethylene glycol peripheral nerve allografts expressed some cytokines/chemokines important for T cell activation at much lower levels at 14 days postoperatively. MHCI expression was elevated in loose-sutured polyethylene glycol peripheral nerve allografts, but MHCII expression was modestly lower compared to negative control at 21 days postoperatively. We conclude that, while polyethylene glycol per se reduces some immune responses of peripheral nerve allografts, successful polyethylene glycol-fusion repair of some axons is necessary to prevent Wallerian degeneration of those axons and immune rejection of peripheral nerve allografts, and produce recovery of sensory/motor functions and voluntary behaviors. Translation of polyethylene glycol-fusion technologies would produce a paradigm shift from the current clinical practice of waiting days to months to repair ablation peripheral nerve injuries.
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Affiliation(s)
- Tyler A Smith
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA
| | - Liwen Zhou
- Department of Neuroscience, University of Texas at Austin, Austin, TX, USA
| | | | - Michelle Mikesh
- Department of Neuroscience, University of Texas at Austin, Austin, TX, USA
| | - Cathy Z Yang
- Department of Neuroscience, University of Texas at Austin, Austin, TX, USA
| | - Haley O Tucker
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA
| | - JuliAnne Allgood
- Division of Pharmaceutical Sciences, University of Wyoming, Laramie, WY, USA
| | - Jared S Bushman
- Division of Pharmaceutical Sciences, University of Wyoming, Laramie, WY, USA
| | - George D Bittner
- Department of Neuroscience, University of Texas at Austin, Austin, TX, USA
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Zhao W, Tang H, Liang Z, Wang N, Sun R, Su R, Yang Z, Zhou K, Peng Y, Zheng S, Xie H. Carvacrol ameliorates skin allograft rejection through modulating macrophage polarization by activating the Wnt signalling pathway. Phytother Res 2024. [PMID: 39120138 DOI: 10.1002/ptr.8282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 05/22/2024] [Accepted: 06/13/2024] [Indexed: 08/10/2024]
Abstract
Post-transplantation immune rejection remains an important factor for transplant patients. However, conventional immunosuppressants are associated with substantial adverse effects. Natural immunosuppressants present a promising alternative to conventional counterparts, boasting exceptional biological activity, minimal toxicity and reduced side effects. We identified carvacrol as a prospective immunosuppressive agent following T cell proliferation experiment and validated carvacrol's immunosuppressive efficacy in the murine allogeneic skin graft model. T cell proliferation assay was used to screen natural small molecule compounds and the immunosuppressive effect of compounds was evaluated in MHC-mismatched murine allogeneic skin graft model. H&E and immunohistochemical staining were applied to evaluate the pathological grade. Furthermore, flow cytometry was uitlized to analyse the immunophenotype changes of immune cells. Western blotting and q-PCR were used to detect the expression of key molecules in macrophages. In vitro, carvacrol demonstrates significant inhibition of the proliferation of CD4+ T and CD8+ T cells. It notably reduces inflammatory factor expression within the allografts, suppresses T cell differentiation toward Th1 phenotype and expansion. Furthermore, carvacrol prominently hinders M1-type macrophages polarization by activating Wnt signaling. Notably, the anti-rejection efficacy of carvacrol was significantly weakened upon the removal of macrophages in mice using chlorophosphate liposomes. Carvacrol could significantly inhibit T cell proliferation, alleviate graft rejection and has outstanding toxicological safety. The molecular mechanism of the anti-rejection effect of carvacrol is closely related to its mediating activation of macrophage Wnt pathway, inhibiting M1 polarization and inducing T cell differentiation.
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Affiliation(s)
- Wentao Zhao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hong Tang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhi Liang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ning Wang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ruiqi Sun
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Rong Su
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Zhentao Yang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ke Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiyang Peng
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, China
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Haiyang Xie
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, China
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
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3
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Teo PY, Jung Y, Quach DH, Koh J, Ong RW, Goh A, Tan A, Ng CH, Seh CC, Tan KW, Horak ID, Low L. Overexpression of an Engineered SERPINB9 Enhances Allogeneic T-cell Persistence and Efficacy. Cancer Immunol Res 2024; 12:1108-1122. [PMID: 38833270 DOI: 10.1158/2326-6066.cir-23-1001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 02/23/2024] [Accepted: 05/31/2024] [Indexed: 06/06/2024]
Abstract
Allogeneic chimeric antigen receptor (CAR)-expressing T cells offer many advantages over autologous therapies, but their benefits are curtailed by graft-versus-host disease and elimination by recipient immune cells. Moreover, just as with autologous therapies, allogeneic CAR T cells are susceptible to activation-induced cell death (AICD) caused by chronic antigen exposure (CAE). Granzyme B- and Fas/Fas ligand-initiated caspase-mediated apoptoses are key mechanisms of T-cell death caused by T/NK cell-mediated allorejection or CAE. We explored a protective strategy of engineering CAR T cells to overexpress variants of the Granzyme B-specific serine protease inhibitor SERPINB9 (SB9) to improve allogeneic T-cell persistence and antitumor efficacy. We showed that the overexpression of an SB9 variant with broadened caspase specificity, SB9(CAS), not only significantly reduced rejection of allogeneic CAR T cells but also increased their resistance to AICD and enabled them to thrive better under CAE, thus improving allogeneic T-cell persistence and antitumor activity in vitro and in vivo. In addition, although SB9(CAS) overexpression improved the efficacy of allogeneic CAR T-cell therapy by conferring protection to cell death, we did not observe any autonomous growth, and the engineered CAR T cells were still susceptible to an inducible suicide switch. Hence, SB9(CAS) overexpression is a promising strategy that can strengthen current development of cell therapies, broadening their applications to address unmet medical needs.
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Affiliation(s)
- Pei Y Teo
- Tessa Therapeutics Ltd., Singapore, Singapore
| | | | - David H Quach
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston Methodist Hospital and Texas Children's Hospital, Houston, Texas
| | - Joanna Koh
- Tessa Therapeutics Ltd., Singapore, Singapore
| | | | | | - Alrina Tan
- Tessa Therapeutics Ltd., Singapore, Singapore
| | - Chee H Ng
- Tessa Therapeutics Ltd., Singapore, Singapore
| | - Cheah C Seh
- Tessa Therapeutics Ltd., Singapore, Singapore
| | - Kar W Tan
- Tessa Therapeutics Ltd., Singapore, Singapore
| | | | - Lionel Low
- Tessa Therapeutics Ltd., Singapore, Singapore
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Bhatia U, Tadman S, Rocha A, Rudraboina R, Contreras-Ruiz L, Guinan EC. Allostimulation leads to emergence of a human B cell population with increased expression of HLA class I antigen presentation-associated molecules and the immunoglobulin receptor FcRL5. Am J Transplant 2024:S1600-6135(24)00387-3. [PMID: 38992496 DOI: 10.1016/j.ajt.2024.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/31/2024] [Accepted: 06/15/2024] [Indexed: 07/13/2024]
Abstract
In the extensive literature characterizing lymphocyte contributions to transplant-related pathologies including allograft rejection and graft-versus-host disease, T cell-focused investigation has outpaced investigation of B cells. Most B cell-related reports describe regulatory and antibody-producing functions, with less focus on the potential role of antigen-presenting capacity. Using in vitro human mixed lymphocyte reactions (MLRs) to model allostimulation, we analyzed responder B cells using transcriptional analysis, flow cytometry, and microscopy. We observed emergence of an activated responder B cell subpopulation phenotypically similar to that described in individuals with graft-versus-host disease or allograft rejection. This population had markedly increased expression of FcRL5 (Fc receptor like 5) and molecules associated with human leukocyte antigen class I antigen presentation. Consistent with this phenotype, these cells demonstrated increased internalization of irradiated cell debris and dextran macromolecules. The proportion of this subpopulation within MLR responders also correlated with emergence of activated, cytotoxic CD8+ T cells. B cells of similar profile were quite infrequent in unstimulated blood from healthy individuals but readily identifiable in disaggregated human splenocytes and increased in both cases upon allostimulation. Further characterization of the emergence and function of this subpopulation could potentially contribute to identification of novel biomarkers and targeted therapeutics relevant to curbing transplant-related pathology.
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Affiliation(s)
- Urvashi Bhatia
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA; Department of Radiation Oncology, Harvard Medical School, Boston, Massachusetts, USA
| | - Sarah Tadman
- Department of Experimental Medicine, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Alyssa Rocha
- Department of Experimental Medicine, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Rakesh Rudraboina
- Department of Experimental Medicine, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Laura Contreras-Ruiz
- Department of Experimental Medicine, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Eva C Guinan
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA; Department of Radiation Oncology, Harvard Medical School, Boston, Massachusetts, USA.
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Nykänen AI, Mariscal A, Duong A, Ali A, Takahagi A, Bai X, Zehong G, Joe B, Takahashi M, Chen M, Gokhale H, Shan H, Hwang DM, Estrada C, Yeung J, Waddell T, Martinu T, Juvet S, Cypel M, Liu M, Davies JE, Keshavjee S. Lung Transplant Immunomodulation with Genetically Engineered Mesenchymal Stromal Cells-Therapeutic Window for Interleukin-10. Cells 2024; 13:859. [PMID: 38786082 PMCID: PMC11119666 DOI: 10.3390/cells13100859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/05/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
Lung transplantation results are compromised by ischemia-reperfusion injury and alloimmune responses. Ex vivo lung perfusion (EVLP) is used to assess marginal donor lungs before transplantation but is also an excellent platform to apply novel therapeutics. We investigated donor lung immunomodulation using genetically engineered mesenchymal stromal cells with augmented production of human anti-inflammatory hIL-10 (MSCsIL-10). Pig lungs were placed on EVLP for 6 h and randomized to control (n = 7), intravascular delivery of 20 × 106 (n = 5, low dose) or 40 × 106 human MSCs IL-10 (n = 6, high dose). Subsequently, single-lung transplantation was performed, and recipient pigs were monitored for 3 days. hIL-10 secretion was measured during EVLP and after transplantation, and immunological effects were assessed by cytokine profile, T and myeloid cell characterization and mixed lymphocyte reaction. MSCIL-10 therapy rapidly increased hIL-10 during EVLP and resulted in transient hIL-10 elevation after lung transplantation. MSCIL-10 delivery did not affect lung function but was associated with dose-related immunomodulatory effects, with the low dose resulting in a beneficial decrease in apoptosis and lower macrophage activation, but the high MSCIL-10 dose resulting in inflammation and cytotoxic CD8+ T cell activation. MSCIL-10 therapy during EVLP results in a rapid and transient perioperative hIL-10 increase and has a therapeutic window for its immunomodulatory effects.
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Affiliation(s)
- Antti I. Nykänen
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Andrea Mariscal
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Allen Duong
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Aadil Ali
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Akihiro Takahagi
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Xiaohui Bai
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Guan Zehong
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Betty Joe
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Mamoru Takahashi
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Manyin Chen
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Hemant Gokhale
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Hongchao Shan
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - David M. Hwang
- Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON M4N 3M5, Canada;
| | - Catalina Estrada
- Tissue Regeneration Therapeutics, Toronto, ON M5G 1N8, Canada; (C.E.); (J.E.D.)
| | - Jonathan Yeung
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Tom Waddell
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Tereza Martinu
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Stephen Juvet
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Marcelo Cypel
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Mingyao Liu
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - John E. Davies
- Tissue Regeneration Therapeutics, Toronto, ON M5G 1N8, Canada; (C.E.); (J.E.D.)
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
| | - Shaf Keshavjee
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
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6
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Nicosia M, Valujskikh A. Recognizing Complexity of CD8 T Cells in Transplantation. Transplantation 2024:00007890-990000000-00734. [PMID: 38637929 DOI: 10.1097/tp.0000000000005001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The major role of CD8+ T cells in clinical and experimental transplantation is well documented and acknowledged. Nevertheless, the precise impact of CD8+ T cells on graft tissue injury is not completely understood, thus impeding the development of specific treatment strategies. The goal of this overview is to consider the biology and functions of CD8+ T cells in the context of experimental and clinical allotransplantation, with special emphasis on how this cell subset is affected by currently available and emerging therapies.
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Affiliation(s)
- Michael Nicosia
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
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Abdrakhimov B, Kayewa E, Wang Z. Prediction of Acute Cardiac Rejection Based on Gene Expression Profiles. J Pers Med 2024; 14:410. [PMID: 38673037 PMCID: PMC11051265 DOI: 10.3390/jpm14040410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 03/30/2024] [Accepted: 04/06/2024] [Indexed: 04/28/2024] Open
Abstract
Acute cardiac rejection remains a significant challenge in the post-transplant period, necessitating meticulous monitoring and timely intervention to prevent graft failure. Thus, the goal of the present study was to identify novel biomarkers involved in acute cardiac rejection, paving the way for personalized diagnostic, preventive, and treatment strategies. A total of 809 differentially expressed genes were identified in the GSE150059 dataset. We intersected genes selected by analysis of variance, recursive feature elimination, least absolute shrinkage and selection operator, and random forest classifier to identify the most relevant genes involved in acute cardiac rejection. Thus, HCP5, KLRD1, GZMB, PLA1A, GNLY, and KLRB1 were used to train eight machine learning models: random forest, logistic regression, decision trees, support vector machines, gradient boosting machines, K-nearest neighbors, XGBoost, and neural networks. Models were trained, tested, and validated on the GSE150059 dataset (MMDx-based diagnosis of rejection). Eight algorithms achieved great performance in predicting acute cardiac rejection. However, all machine learning models demonstrated poor performance in two external validation sets that had rejection diagnosis based on histology: merged GSE2596 and GSE4470 dataset and GSE9377 dataset, thus highlighting differences between these two methods. According to SHAP and LIME, KLRD1 and HCP5 were the most impactful genes.
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Affiliation(s)
- Bulat Abdrakhimov
- Department of Cardiovascular Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China;
| | - Emmanuel Kayewa
- School of Computer Science, Wuhan University, Wuhan 430072, China;
| | - Zhiwei Wang
- Department of Cardiovascular Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China;
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de Silva TA, Apte S, Voisey J, Spann K, Tan M, Chambers D, O'Sullivan B. Immunological Landscapes in Lung Transplantation: Insights from T Cell Profiling in BAL and PBMC. Int J Mol Sci 2024; 25:2476. [PMID: 38473722 DOI: 10.3390/ijms25052476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/05/2024] [Accepted: 02/15/2024] [Indexed: 03/14/2024] Open
Abstract
Lung transplant recipients frequently encounter immune-related complications, including chronic lung allograft dysfunction (CLAD). Monitoring immune cells within the lung microenvironment is pivotal for optimizing post-transplant outcomes. This study examined the proportion of T cell subsets in paired bronchoalveolar lavage (BAL) and peripheral PBMC comparing healthy (n = 4) and lung transplantation patients (n = 6, no CLAD and n = 14 CLAD) using 14-color flow cytometry. CD4+ T cell proportions were reduced in CD3 cells in both PBMC and BAL, and positive correlations were discerned between T cell populations in peripheral PBMC and BAL, suggesting the prospect of employing less invasive PBMC sampling as a means of monitoring lung T cells. Furthermore, regulatory T cells (Tregs) were enriched in BAL when compared to peripheral PBMC for transplant recipients. A parallel positive correlation emerged between Treg proportions in BAL and peripheral PBMC, underscoring potential avenues for monitoring lung Tregs. Finally, the most promising biomarker was the Teff (CD8+Granzyme B+)-Treg ratio, which was higher in both the PBMC and BAL of transplant recipients compared to healthy individuals, and increased in the patients with CLAD compared to no CLAD and healthy patients. Conclusions: Distinct T cell profiles in BAL and peripheral PBMC underscore the significance of localized immune monitoring in lung transplantation. The Teff (CD8+granzyme B+)-Treg ratio, particularly within the context of CLAD, emerges as a promising blood and BAL biomarker reflective of inflammation and transplant-related complications. These findings emphasize the imperative need for personalized immune monitoring strategies that tailored to address the unique immunological milieu in post-transplant lungs.
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Affiliation(s)
- Tharushi Ayanthika de Silva
- Centre for Genomics and Personalised Health, Faculty of Health, School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD 4001, Australia
- Queensland Lung Transplant Service, Ground Floor, Clinical Sciences Building, The Prince Charles Hospital, Brisbane, QLD 4001, Australia
| | - Simon Apte
- Queensland Lung Transplant Service, Ground Floor, Clinical Sciences Building, The Prince Charles Hospital, Brisbane, QLD 4001, Australia
- Facility of Clinical Medicine, The University of Queensland, Brisbane, QLD 4001, Australia
| | - Joanne Voisey
- Centre for Genomics and Personalised Health, Faculty of Health, School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD 4001, Australia
| | - Kirsten Spann
- Centre for Immunology and Infection Control, Faculty of Health, School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD 4001, Australia
| | - Maxine Tan
- Queensland Lung Transplant Service, Ground Floor, Clinical Sciences Building, The Prince Charles Hospital, Brisbane, QLD 4001, Australia
- Facility of Clinical Medicine, The University of Queensland, Brisbane, QLD 4001, Australia
| | - Daniel Chambers
- Centre for Genomics and Personalised Health, Faculty of Health, School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD 4001, Australia
- Queensland Lung Transplant Service, Ground Floor, Clinical Sciences Building, The Prince Charles Hospital, Brisbane, QLD 4001, Australia
- Facility of Clinical Medicine, The University of Queensland, Brisbane, QLD 4001, Australia
| | - Brendan O'Sullivan
- Centre for Genomics and Personalised Health, Faculty of Health, School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD 4001, Australia
- Queensland Lung Transplant Service, Ground Floor, Clinical Sciences Building, The Prince Charles Hospital, Brisbane, QLD 4001, Australia
- Facility of Clinical Medicine, The University of Queensland, Brisbane, QLD 4001, Australia
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Jalali S, Stankovic S, Westall GP, Reading PC, Sullivan LC, Brooks AG. Examining the impact of immunosuppressive drugs on antibody-dependent cellular cytotoxicity (ADCC) of human peripheral blood natural killer (NK) cells and gamma delta (γδ) T cells. Transpl Immunol 2024; 82:101962. [PMID: 38007172 DOI: 10.1016/j.trim.2023.101962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 11/20/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
BACKGROUND Human natural killer (NK) cells and gamma delta (γδ) T cells may impact outcomes of solid organ transplantation (SOT) such as lung transplantation (LTx) following the differential engagement of an array of activating and inhibitory receptors. Amongst these, CD16 may be particularly important due to its capacity to bind IgG to trigger antibody-dependent cellular cytotoxicity (ADCC) and the production of proinflammatory cytokines. While the use of immunosuppressive drugs (ISDs) is an integral component of SOT practice, their relative impact on various immune cells, especially γδT cells and CD16-induced functional responses, is still unclear. METHODS The ADCC responses of peripheral blood NK cells and γδT cells from both healthy blood donors and adult lung transplant recipients (LTRs) were assessed by flow cytometry. Specifically, the degranulation response, as reflected in the expression of CD107a, and the capacity of both NK cells and γδT cells to produce IFN-γ and TNF-α was assessed following rituximab (RTX)-induced activation. Additionally, the effect of cyclosporine A (CsA), tacrolimus (TAC), prednisolone (Prdl) and azathioprine (AZA) at the concentration of 1 ng/ml, 10 ng/ml, 100 ng/ml, and 1000 ng/ml on these responses was also compared in both cell types. RESULTS Flow cytometric analyses of CD16 expresion showed that its expression on γδT cells was both at lower levels and more variable than that on peripheral blood NK cells. Nevertheless functional analyses showed that despite these differences, γδT cells like NK cells can be readily activated by engagement with RTX to degranulate and produce cytokines such as IFNg and TNF-a. RTX-induced degranulation by either NK cells or γδT cells from healthy donors was not impacted by co-culture with individual ISDs. However, CsA and TAC but not Prdl and AZA did inhibit the production of IFN-γ and TNF-α by both cell types. Flow cytometric analyses of RTX-induced activation of NK cells and γδT cells from LTRs suggested their capacity to degranulate was not markedly impacted by transplantation with similar levels of cells expressing CD107 pre- and post-LTx. However an impairment in the ability of NK cells to produce cytokines was observed in samples obtained post LTx whereas γδT cell cytokine responses were not significantly impacted. CONCLUSIONS In conclusion, the findings show that despite differences in the expression levels of CD16, γδT cells like NK cells can be readily activated by engagement with RTX and that in vitro exposure to CsA and TAC (calcineurin inhibitors) had a measurable effect on cytokine production but not degranulation by both NK cells and gdT cells from healthy donors. Finally the observation that in PBMC obtained from LTx recipients, NK cells but not γδT cells exhibited impaired cytokine reponses suggests that transplantation or chronic exposure to ISDs differentially impacts their potential to respond to the introduction of an allograft and/or transplant-associated infections.
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Affiliation(s)
- Sedigheh Jalali
- Murdoch Children's Research Institute, The Royal Children's Hospital, Parkville, Victoria 3052, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria 3010, Australia; Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute, Parkville, Victoria 3010, Australia
| | - Sanda Stankovic
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute, Parkville, Victoria 3010, Australia
| | - Glen P Westall
- Lung Transplant Service, The Alfred Hospital and Monash University, Melbourne, Victoria 3000, Australia
| | - Patrick C Reading
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute, Parkville, Victoria 3010, Australia
| | - Lucy C Sullivan
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute, Parkville, Victoria 3010, Australia
| | - Andrew G Brooks
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute, Parkville, Victoria 3010, Australia.
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Schmalkuche K, Rother T, Besli S, Schwinzer R, Blasczyk R, Petersen B, Figueiredo C. Human PD-L1 overexpression decreases xenogeneic human T-cell immune responses towards porcine kidneys. Front Immunol 2024; 15:1279050. [PMID: 38352884 PMCID: PMC10861674 DOI: 10.3389/fimmu.2024.1279050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/11/2024] [Indexed: 02/16/2024] Open
Abstract
Xenotransplantation offers a promising alternative to circumvent the lack of donated human organs available for transplantation. Different attempts to improve the survival of xenografts led to the generation of transgenic pigs expressing various combinations of human protective genes or knocked out for specific antigens. Currently, testing the efficiency of porcine organs carrying different genetic modifications in preventing xenogeneic immune responses completely relies on in vitro assays, humanized mouse models, or non-human primate transplantation models. However, these tests are often associated with major concerns due to reproducibility and generation of insufficient data as well as they raise ethical, logistical, and economic issues. In this study, we investigated the feasibility of specifically assessing the strength of human T-cell responses towards the kidneys of wild-type (WT) or transgenic pigs overexpressing human programmed death-1 ligand 1 (hPD-L1) during ex vivo kidney perfusion (EVKP). Human T cells were shown to adhere to the endothelium and transmigrate into WT and hPD-L1 kidneys. However, transcript levels of TNF-a and IFN-y as well as cytotoxic molecules such as granzyme B and perforin secreted by human T cells were significantly decreased in the tissue of hPD-L1 kidneys in comparison to WT kidneys. These results were confirmed via in vitro assays using renal endothelial cells (ECs) isolated from WT and hPD-L1 transgenic pigs. Both CD4+ and CD8+ T cells showed significantly lower proliferation rates after exposure to hPD-L1 porcine renal ECs in comparison to WT ECs. In addition, the secretion of pro-inflammatory cytokines was significantly reduced in cultures using hPD-L1 ECs in comparison to WT ECs. Remarkably, hPD-L1 EC survival was significantly increased in cytotoxic assays. This study demonstrates the feasibility of evaluating the human response of specific immune subsets such as human T cells towards the whole xenograft during EVKP. This may represent a robust strategy to assess the potency of different genetic modifications to prevent xenogeneic immune responses and thereby predict the risk of immune rejection of new genetically engineered xenografts.
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Affiliation(s)
- Katharina Schmalkuche
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
- Transregional Collaborative Research Centre 127, Hannover Medical School, Hannover, Germany
| | - Tamina Rother
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Sevval Besli
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Reinhard Schwinzer
- Transregional Collaborative Research Centre 127, Hannover Medical School, Hannover, Germany
- Transplantation Laboratory, Clinic for General, Visceral and Transplantation-Surgery, Hannover Medical School, Hannover, Germany
| | - Rainer Blasczyk
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Björn Petersen
- Transregional Collaborative Research Centre 127, Hannover Medical School, Hannover, Germany
- Department of Biotechnology, Institute of Farm Animal Genetics, Friedrich-Loeffler-Institute, Federal Research Institute for Animal Health, Neustadt am Rübenberge, Germany
| | - Constanca Figueiredo
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
- Transregional Collaborative Research Centre 127, Hannover Medical School, Hannover, Germany
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11
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Ding M, Gao T, Song Y, Yi L, Li W, Deng C, Zhou W, Xie M, Zhang L. Nanoparticle-based T cell immunoimaging and immunomodulatory for diagnosing and treating transplant rejection. Heliyon 2024; 10:e24203. [PMID: 38312645 PMCID: PMC10835187 DOI: 10.1016/j.heliyon.2024.e24203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 02/06/2024] Open
Abstract
T cells serve a pivotal role in the rejection of transplants, both by directly attacking the graft and by recruiting other immune cells, which intensifies the rejection process. Therefore, monitoring T cells becomes crucial for early detection of transplant rejection, while targeted drug delivery specifically to T cells can significantly enhance the effectiveness of rejection therapy. However, regulating the activity of T cells within transplanted organs is challenging, and the prolonged use of immunosuppressive drugs is associated with notable side effects and complications. Functionalized nanoparticles offer a potential solution by targeting T cells within transplants or lymph nodes, thereby reducing the off-target effects and improving the long-term survival of the graft. In this review, we will provide an overview of recent advancements in T cell-targeted imaging molecular probes for diagnosing transplant rejection and the progress of T cell-regulating nanomedicines for treating transplant rejection. Additionally, we will discuss future directions and the challenges in clinical translation.
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Affiliation(s)
- Mengdan Ding
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Tang Gao
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Yishu Song
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Luyang Yi
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Wenqu Li
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Cheng Deng
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Wuqi Zhou
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Mingxing Xie
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Li Zhang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
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12
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Tan ZH, Liu L, Dharmadhikari S, Shontz KM, Kreber L, Sperber S, Yu J, Byun WY, Nyirjesy SC, Manning A, Reynolds SD, Chiang T. Partial decellularization eliminates immunogenicity in tracheal allografts. Bioeng Transl Med 2023; 8:e10525. [PMID: 37693070 PMCID: PMC10487308 DOI: 10.1002/btm2.10525] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 09/12/2023] Open
Abstract
There is currently no suitable autologous tissue to bridge large tracheal defects. As a result, no standard of care exists for long-segment tracheal reconstruction. Tissue engineering has the potential to create a scaffold from allografts or xenografts that can support neotissue regeneration identical to the native trachea. Recent advances in tissue engineering have led to the idea of partial decellularization that allows for the creation of tracheal scaffolds that supports tracheal epithelial formation while preserving mechanical properties. However, the ability of partial decellularization to eliminate graft immunogenicity remains unknown, and understanding the immunogenic properties of partially decellularized tracheal grafts (PDTG) is a critical step toward clinical translation. Here, we determined that tracheal allograft immunogenicity results in epithelial cell sloughing and replacement with dysplastic columnar epithelium and that partial decellularization creates grafts that are able to support an epithelium without histologic signs of rejection. Moreover, allograft implantation elicits CD8+ T-cell infiltration, a mediator of rejection, while PDTG did not. Hence, we establish that partial decellularization eliminates allograft immunogenicity while creating a scaffold for implantation that can support spatially appropriate airway regeneration.
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Affiliation(s)
- Zheng Hong Tan
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOhioUSA
- College of Medicine, The Ohio State UniversityColumbusOhioUSA
| | - Lumei Liu
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOhioUSA
| | - Sayali Dharmadhikari
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOhioUSA
- College of Medicine, The Ohio State UniversityColumbusOhioUSA
| | - Kimberly M. Shontz
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOhioUSA
| | - Lily Kreber
- College of Medicine, The Ohio State UniversityColumbusOhioUSA
| | - Sarah Sperber
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOhioUSA
| | - Jane Yu
- College of Medicine, The Ohio State UniversityColumbusOhioUSA
| | - Woo Yul Byun
- College of Medicine, The Ohio State UniversityColumbusOhioUSA
| | - Sarah C. Nyirjesy
- Department of Pediatric OtolaryngologyNationwide Children's HospitalColumbusOhioUSA
| | - Amy Manning
- Department of Pediatric OtolaryngologyNationwide Children's HospitalColumbusOhioUSA
| | - Susan D. Reynolds
- Center for Perinatal Research, Nationwide Children's HospitalColumbusOhioUSA
| | - Tendy Chiang
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOhioUSA
- Department of Pediatric OtolaryngologyNationwide Children's HospitalColumbusOhioUSA
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Gao T, Yi L, Wang Y, Wang W, Zhao Q, Song Y, Ding M, Deng C, Chen Y, Xie Y, Wu W, Jin Q, Zhang L, Xie M. Granzyme B-responsive fluorescent probe for non-invasive early diagnosis of transplant rejection. Biosens Bioelectron 2023; 232:115303. [PMID: 37060862 DOI: 10.1016/j.bios.2023.115303] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/16/2023] [Accepted: 04/05/2023] [Indexed: 04/17/2023]
Abstract
Allograft rejection has always been a major obstacle in organ transplantation. The current clinical diagnostic gold standard for allograft rejection is an invasive biopsy. However, biopsy has some limitations, such as sampling errors, risk of serious complications, and high cost. In this study, we have rationally developed an activatable fluorescent probe CYGB for imaging of granzyme B, which is a biomarker released by CD8+T cells attacking the graft. Moreover, the ability of CYGB to detect rejection early in mouse heart and skin transplantation models was evaluated. The probe CYGB consists of a caged hemicyanine-based fluorophore and a GzmB-specifically cleaved peptide substrate linked via a self-immolating spacer, p-aminobenzyl alcohol. Endogenous GzmB in CD8+ T cells specifically activated the near-infrared fluorescence (NIRF) signal of CYGB. In vivo imaging in mice skin and heart graft models, showed that CYGB preferentially accumulates in grafts, enabling early diagnosis of rejection. Moreover, CYGB enables non-invasive assessment of the level of immunosuppression in allogeneic mice treated with FK506. This study provides an alternative method for monitoring the status of allografts without biopsy.
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Affiliation(s)
- Tang Gao
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Luyang Yi
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Yihui Wang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Wenyuan Wang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Qianqian Zhao
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China; Computational Biomedicine (IAS-5/INM-9), Forschungszentrum Jülich, Jülich, 52425, Germany
| | - Yuan Song
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Mengdan Ding
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Cheng Deng
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Yihan Chen
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Yuji Xie
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Wenqian Wu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Qiaofeng Jin
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Li Zhang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China.
| | - Mingxing Xie
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Medical Imaging, Wuhan, 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China.
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14
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Identifying stable reference genes in polyethene glycol precipitated urinary extracellular vesicles for RT-qPCR-based gene expression studies in renal graft dysfunction patients. Transpl Immunol 2022; 75:101715. [PMID: 36122652 DOI: 10.1016/j.trim.2022.101715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Urinary extracellular vesicles (UEVs) hold RNA in their cargo and are potential sources of biomarkers for gene expression studies. The most used technique for gene-expression studies is quantitative polymerase chain reaction (qPCR). It is critical to use stable reference genes (RGs) as internal controls for normalising gene expression data, which aren't currently available for UEVs. METHODS UEVs were precipitated from urine of graft dysfunction patients and healthy controls by Polyethylene glycol, Mn6000 (PEG6K). Vesicular characterisation confirmed the presence of UEVs. Gene expression levels of five commonly used RGs, i.e., Beta-2-Microglobulin (B2M), ribosomal-protein-L13a (RPL13A), Peptidylprolyl-Isomerase-A (PPIA), hydroxymethylbilane synthase (HMBS), and glyceraldehyde-3-phosphate-dehydrogenase (GAPDH) were quantified, and their stability was established through the RefFinder. The stability of identified RGs was validated by quantification of Perforin and granzyme B, signature molecules of renal graft dysfunction. RESULTS Urine precipitated with 12% 6 K PEG yielded round and double-membraned UEVs of size ranging from 30 to 100 nm, as confirmed through transmission electron microscopy. Nanoparticle tracking analysis (59 ± 22 nm) and Dynamic-light-scattering (78 ± 56.5 nm) confirmed their size profile. Semi-quantitative Exocheck antibody array demonstrated the presence of EV protein markers in UEV. Using the comparative ΔCт method and RefFinder analysis, B2M (1.6) and RPL13A (1.8) genes emerged as the most stable reference genes. Validation of target gene expression in renal graft dysfunction patients confirmed the efficiency of B2M and RPL13A through significant upregulation compared to other RGs. CONCLUSIONS Our study identified and validated B2M and RPL13A as optimal RGs for mRNA quantification studies in the UEVs of patients with renal graft dysfunction.
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15
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Yip HF, Chowdhury D, Wang K, Liu Y, Gao Y, Lan L, Zheng C, Guan D, Lam KF, Zhu H, Tai X, Lu A. ReDisX, a machine learning approach, rationalizes rheumatoid arthritis and coronary artery disease patients uniquely upon identifying subpopulation differentiation markers from their genomic data. Front Med (Lausanne) 2022; 9:931860. [PMID: 36072953 PMCID: PMC9441882 DOI: 10.3389/fmed.2022.931860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/28/2022] [Indexed: 11/29/2022] Open
Abstract
Diseases originate at the molecular-genetic layer, manifest through altered biochemical homeostasis, and develop symptoms later. Hence, symptomatic diagnosis is inadequate to explain the underlying molecular-genetic abnormality and individual genomic disparities. The current trends include molecular-genetic information relying on algorithms to recognize the disease subtypes through gene expressions. Despite their disposition toward disease-specific heterogeneity and cross-disease homogeneity, a gap still exists in describing the extent of homogeneity within the heterogeneous subpopulation of different diseases. They are limited to obtaining the holistic sense of the whole genome-based diagnosis resulting in inaccurate diagnosis and subsequent management. Addressing those ambiguities, our proposed framework, ReDisX, introduces a unique classification system for the patients based on their genomic signatures. In this study, it is a scalable machine learning algorithm deployed to re-categorize the patients with rheumatoid arthritis and coronary artery disease. It reveals heterogeneous subpopulations within a disease and homogenous subpopulations across different diseases. Besides, it identifies granzyme B (GZMB) as a subpopulation-differentiation marker that plausibly serves as a prominent indicator for GZMB-targeted drug repurposing. The ReDisX framework offers a novel strategy to redefine disease diagnosis through characterizing personalized genomic signatures. It may rejuvenate the landscape of precision and personalized diagnosis and a clue to drug repurposing.
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Affiliation(s)
- Hiu F. Yip
- Computational Medicine Laboratory, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
- Institute of Integrated Bioinformedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
- Department of Mathematics, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Debajyoti Chowdhury
- Computational Medicine Laboratory, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
- Institute of Integrated Bioinformedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Kexin Wang
- National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangzhou, China
- Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Neurosurgery Institute, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yujie Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yao Gao
- Department of Psychiatry, First Hospital, First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Liang Lan
- Department of Communication Studies, School of Communication, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Chaochao Zheng
- Department of Mathematics, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Daogang Guan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou, China
| | - Kei F. Lam
- Department of Mathematics, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Hailong Zhu
- Computational Medicine Laboratory, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
- Institute of Integrated Bioinformedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Xuecheng Tai
- Department of Mathematics, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Aiping Lu
- Computational Medicine Laboratory, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
- Institute of Integrated Bioinformedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
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16
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Liu SJ, Ma K, Liu LS, Wang K, Zhang YA, Bi ZR, Chen YX, Chen KZ, Wang CX, Qiao SL. Point-of-care non-invasive enzyme-cleavable nanosensors for acute transplant rejection detection. Biosens Bioelectron 2022; 215:114568. [PMID: 35850041 DOI: 10.1016/j.bios.2022.114568] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/24/2022] [Accepted: 07/09/2022] [Indexed: 12/28/2022]
Abstract
Accurate and non-invasive monitoring of allograft posttransplant is essential for early detection of acute cellular rejection and determines the long-term survival of the graft. Clinically, tissue biopsy is the most effective approach for diagnosing transplant rejection. Nonetheless, the procedure is invasive and potentially triggers organ failure. This work aims to design and apply GzmB-responsive nanosensors (GBRNs) that can readily size-change in graft tissues. Subsequently, we investigate the activity of serine protease granzyme B by generating a direct colorimetric urinary readout for non-invasive detection of transplant rejection in under 1 h. In preclinical heart graft mice models of transplant rejection, GBRNs were cleaved by GzmB and excreted by the kidneys via accurate nanometre-size glomerular filtration. By exploiting the catalytic activity of ultrasmall gold nanoclusters, GBRNs urinalysis promotes ultrasensitive surveillance of rejection episodes with a receiver operator characteristic curve area under the curve of 0.896 as well as a 95% confidence interval of about 0.7701-1.000. Besides, the catalytic activity of gold nanoclusters in urine can be detected at point-of-care testing to predict the immunity responses in mice with insufficient immunosuppressive therapy. Therefore, this non-invasive, sensitive, and quantitative method is a robust and informative approach for rapid and routine monitoring of transplant allografts without invasive biopsy.
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Affiliation(s)
- Shi-Jie Liu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510020, PR China
| | - Ke Ma
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao, 266042, PR China
| | - Long-Shan Liu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510020, PR China
| | - Ke Wang
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao, 266042, PR China
| | - Ying-Ao Zhang
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao, 266042, PR China
| | - Zi-Rong Bi
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510020, PR China
| | - Yan-Xu Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510020, PR China
| | - Ke-Zheng Chen
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao, 266042, PR China.
| | - Chang-Xi Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510020, PR China.
| | - Sheng-Lin Qiao
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao, 266042, PR China.
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17
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Parker J, Roth O. Comparative assessment of immunological tolerance in fish with natural immunodeficiency. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 132:104393. [PMID: 35276317 DOI: 10.1016/j.dci.2022.104393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/24/2022] [Accepted: 03/05/2022] [Indexed: 06/14/2023]
Abstract
Natural occurrences of immunodeficiency by definition should lead to compromised immune function. The major histocompatibility complexes (MHC) are key components of the vertebrate adaptive immune system, charged with mediating allorecognition and antigen presentation functions. To this end, the genomic loss of the MHC II pathway in Syngnathus pipefishes raises questions regarding their immunological vigilance and allorecognition capabilities. Utilising allograft and autograft fin-transplants, we compared the allorecognition immune responses of two pipefish species, with (Nerophis ophidion) and without (Syngnathus typhle) a functional MHC II. Transcriptome-wide assessments explored the immunological tolerance and potential compensatory measures occupying the role of the absent MHC II. Visual observations suggested a more acute rejection response in N. ophidion allografts compared with S. typhle allografts. Differentially expressed genes involved in innate immunity, angiogenesis and tissue recovery were identified among transplantees. The intriguing upregulation of the cytotoxic T-cell implicated gzma in S. typhle allografts, suggests a prominent MHC I related response, which may compensate for the MHC II and CD4 loss. MHC I related downregulation in N. ophidion autografts hints at an immunological tolerance related reaction. These findings may indicate alternative measures evolved to cope with the MHC II genomic loss enabling the maintenance of appropriate tolerance levels. This study provides intriguing insights into the immune and tissue recovery mechanisms associated with syngnathid transplantation, and can be a useful reference for future studies focusing on transplantation transcriptomics in non-model systems.
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Affiliation(s)
- Jamie Parker
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, D-24105, Kiel, Germany; Marine Evolutionary Biology, Christian-Albrechts-University, D-24118, Kiel, Germany.
| | - Olivia Roth
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, D-24105, Kiel, Germany; Marine Evolutionary Biology, Christian-Albrechts-University, D-24118, Kiel, Germany
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18
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Pașatu‑Cornea AM, Ciciu E, Tuță LA. Perforin: An intriguing protein in allograft rejection immunology (Review). Exp Ther Med 2022; 24:519. [DOI: 10.3892/etm.2022.11446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/05/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
| | - Elena Ciciu
- Department of Nephrology, Constanta County Emergency Hospital, 900591 Constanta, Romania
| | - Liliana-Ana Tuță
- Department of Nephrology, Constanta County Emergency Hospital, 900591 Constanta, Romania
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19
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Li S, Zou D, Chen W, Cheng Y, Britz GW, Weng YL, Liu Z. Ablation of BATF Alleviates Transplant Rejection via Abrogating the Effector Differentiation and Memory Responses of CD8 + T Cells. Front Immunol 2022; 13:882721. [PMID: 35514970 PMCID: PMC9062028 DOI: 10.3389/fimmu.2022.882721] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 03/25/2022] [Indexed: 02/02/2023] Open
Abstract
Allogeneic CD8+ T cells are prominently involved in allograft rejection, but how their effector differentiation and function are regulated at a transcriptional level is not fully understood. Herein, we identified the basic leucine zipper ATF-like transcription factor (BATF) as a key transcription factor that drives the effector program of allogeneic CD8+ T cells. We found that BATF is highly expressed in graft-infiltrating CD8+ T cells, and its ablation in CD8+ T cells significantly prolonged skin allograft survival in a fully MHC-mismatched transplantation model. To investigate how BATF dictates allogeneic CD8+ T cell response, BATF-/- and wild-type (WT) CD8+ T cells were mixed in a 1:1 ratio and adoptively transferred into B6.Rag1-/- mice 1 day prior to skin transplantation. Compared with WT CD8+ T cells at the peak of rejection response, BATF-/- CD8+ T cells displayed a dysfunctional phenotype, evident by their failure to differentiate into CD127-KLRG1+ terminal effectors, impaired proliferative capacity and production of pro-inflammatory cytokines/cytotoxic molecules, and diminished capacity to infiltrate allografts. In association with the failure of effector differentiation, BATF-/- CD8+ T cells largely retained TCF1 expression and expressed significantly low levels of T-bet, TOX, and Ki67. At the memory phase, BATF-deficient CD8+ T cells displayed impaired effector differentiation upon allogeneic antigen re-stimulation. Therefore, BATF is a critical transcriptional determinant that governs the terminal differentiation and memory responses of allogeneic CD8+ T cells in the transplantation setting. Targeting BATF in CD8+ T cells may be an attractive therapeutic approach to promote transplant acceptance.
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Affiliation(s)
- Shuang Li
- Department of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China,Institute of Clinical Pharmacology, Central South University, Changsha, China,Department of Neurosurgery, Houston Methodist Neurological Institute, Houston, TX, United States,Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Dawei Zou
- Immunobiology & Transplant Science Center, Department of Surgery, Houston Methodist Research Institute & Institute for Academic Medicine, Houston Methodist Hospital, Houston, TX, United States
| | - Wenhao Chen
- Immunobiology & Transplant Science Center, Department of Surgery, Houston Methodist Research Institute & Institute for Academic Medicine, Houston Methodist Hospital, Houston, TX, United States
| | - Yating Cheng
- Department of Neurosurgery, Houston Methodist Neurological Institute, Houston, TX, United States,Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Gavin W. Britz
- Department of Neurosurgery, Houston Methodist Neurological Institute, Houston, TX, United States,Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Yi-Lan Weng
- Department of Neurosurgery, Houston Methodist Neurological Institute, Houston, TX, United States,Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX, United States,*Correspondence: Zhaoqian Liu, ;Yi-Lan Weng,
| | - Zhaoqian Liu
- Department of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China,Institute of Clinical Pharmacology, Central South University, Changsha, China,*Correspondence: Zhaoqian Liu, ;Yi-Lan Weng,
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20
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Bittner GD, Bushman JS, Ghergherehchi CL, Roballo KCS, Shores JT, Smith TA. Typical and atypical properties of peripheral nerve allografts enable novel strategies to repair segmental-loss injuries. J Neuroinflammation 2022; 19:60. [PMID: 35227261 PMCID: PMC8886977 DOI: 10.1186/s12974-022-02395-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 01/19/2022] [Indexed: 12/20/2022] Open
Abstract
We review data showing that peripheral nerve injuries (PNIs) that involve the loss of a nerve segment are the most common type of traumatic injury to nervous systems. Segmental-loss PNIs have a poor prognosis compared to other injuries, especially when one or more mixed motor/sensory nerves are involved and are typically the major source of disability associated with extremities that have sustained other injuries. Relatively little progress has been made, since the treatment of segmental loss PNIs with cable autografts that are currently the gold standard for repair has slow and incomplete (often non-existent) functional recovery. Viable peripheral nerve allografts (PNAs) to repair segmental-loss PNIs have not been experimentally or clinically useful due to their immunological rejection, Wallerian degeneration (WD) of anucleate donor graft and distal host axons, and slow regeneration of host axons, leading to delayed re-innervation and producing atrophy or degeneration of distal target tissues. However, two significant advances have recently been made using viable PNAs to repair segmental-loss PNIs: (1) hydrogel release of Treg cells that reduce the immunological response and (2) PEG-fusion of donor PNAs that reduce the immune response, reduce and/or suppress much WD, immediately restore axonal conduction across the donor graft and re-innervate many target tissues, and restore much voluntary behavioral functions within weeks, sometimes to levels approaching that of uninjured nerves. We review the rather sparse cellular/biochemical data for rejection of conventional PNAs and their acceptance following Treg hydrogel and PEG-fusion of PNAs, as well as cellular and systemic data for their acceptance and remarkable behavioral recovery in the absence of tissue matching or immune suppression. We also review typical and atypical characteristics of PNAs compared with other types of tissue or organ allografts, problems and potential solutions for PNA use and storage, clinical implications and commercial availability of PNAs, and future possibilities for PNAs to repair segmental-loss PNIs.
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Affiliation(s)
- George D Bittner
- Department of Neuroscience, University of Texas at Austin, Austin, TX, 78712, USA.
| | - Jared S Bushman
- School of Pharmacy, University of Wyoming, Laramie, WY, 82072, USA
| | - Cameron L Ghergherehchi
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, 78712, USA
| | | | - Jaimie T Shores
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Tyler A Smith
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, 78712, USA
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21
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Shimozawa K, Contreras-Ruiz L, Sousa S, Zhang R, Bhatia U, Crisalli KC, Brennan LL, Turka LA, Markmann JF, Guinan EC. Ex vivo generation of regulatory T cells from liver transplant recipients using costimulation blockade. Am J Transplant 2022; 22:504-518. [PMID: 34528383 PMCID: PMC9078620 DOI: 10.1111/ajt.16842] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 08/20/2021] [Accepted: 09/13/2021] [Indexed: 01/25/2023]
Abstract
The potential of adoptive cell therapy with regulatory T cells (Tregs) to promote transplant tolerance is under active exploration. However, the impact of specific transplant settings and protocols on Treg manufacturing is not well-delineated. Here, we compared the use of peripheral blood mononuclear cells (PBMCs) from patients before or after liver transplantation to the use of healthy control PBMCs to determine their suitability for Treg manufacture using ex vivo costimulatory blockade with belatacept. Despite liver failure or immunosuppressive therapy, the capacity for Treg expansion during the manufacturing process was preserved. These experiments did not identify performance or quality issues that disqualified the use of posttransplant PBMCs-the currently favored protocol design. However, as Treg input correlated with output, significant CD4-lymphopenia in both pre- and posttransplant patients limited Treg yield. We therefore turned to leukapheresis posttransplant to improve absolute yield. To make deceased donor use feasible, we also developed protocols to substitute splenocytes for PBMCs as allostimulators. In addition to demonstrating that this Treg expansion strategy works in a liver transplant context, this preclinical study illustrates how characterizing cellular input populations and their performance can both inform and respond to clinical trial design and Treg manufacturing requirements.
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Affiliation(s)
- Katsuyoshi Shimozawa
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA,Nihon University School of Medicine, Department of Pediatrics and Child Health, Tokyo, Japan
| | | | - Sofia Sousa
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Ruan Zhang
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Urvashi Bhatia
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Kerry C Crisalli
- Department of Surgery and Center for Transplantation Sciences, Massachusetts General Hospital, Boston MA
| | - Lisa L. Brennan
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Laurence A. Turka
- Department of Surgery and Center for Transplantation Sciences, Massachusetts General Hospital, Boston MA
| | - James F. Markmann
- Department of Surgery and Center for Transplantation Sciences, Massachusetts General Hospital, Boston MA,Department of Surgery, Harvard Medical School, Boston MA
| | - Eva C. Guinan
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA,Department of Radiation Oncology, Harvard Medical School, Boston MA
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22
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Quante M, Iske J, Uehara H, Minami K, Nian Y, Maenosono R, Matsunaga T, Liu Y, Azuma H, Perkins D, Alegre ML, Zhou H, Elkhal A, Tullius SG. Taurodeoxycholic acid and valine reverse obesity-associated augmented alloimmune responses and prolong allograft survival. Am J Transplant 2022; 22:402-413. [PMID: 34551205 PMCID: PMC10614103 DOI: 10.1111/ajt.16856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 08/30/2021] [Accepted: 09/14/2021] [Indexed: 01/25/2023]
Abstract
Obesity initiates a chronic inflammatory network linked to perioperative complications and increased acute rejection rates in organ transplantation. Bariatric surgery is the most effective treatment of obesity recommended for morbidly obese transplant recipients. Here, we delineated the effects of obesity and bariatric surgery on alloimmunity and transplant outcomes in diet-induced obese (DIO) mice. Allograft survival was significantly shorter in DIO-mice. When performing sleeve gastrectomies (SGx) prior to transplantation, we found attenuated T cell-derived alloimmune responses resulting in prolonged allograft survival. Administering taurodeoxycholic acid (TDCA) and valine, metabolites depleted in DIO-mice and restored through SGx, prolonged graft survival in DIO-mice comparable with SGx an dampened Th1 and Th17 alloimmune responses while Treg frequencies and CD4+ T cell-derived IL-10 production were augmented. Moreover, in recipient animals treated with TDCA/valine, levels of donor-specific antibodies had been reduced. Mechanistically, TDCA/valine restrained inflammatory M1-macrophage polarization through TGR5 that compromised cAMP signaling and inhibited macrophage-derived T cell activation. Consistently, administering a TGR5 agonist to DIO-mice prolonged allograft survival. Overall, we provide novel insights into obesity-induced inflammation and its impact on alloimmunity. Furthermore, we introduce TDCA/valine as a noninvasive alternative treatment for obese transplant patients.
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Affiliation(s)
- Markus Quante
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- University Hospital Tuebingen, Department of General, Visceral and Transplant Surgery
| | - Jasper Iske
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Institute of Transplant Immunology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Hirofumi Uehara
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Urology, Osaka Medical College, Osaka, Japan
| | - Koichiro Minami
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Urology, Osaka Medical College, Osaka, Japan
| | - Yeqi Nian
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ryochi Maenosono
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Urology, Osaka Medical College, Osaka, Japan
| | - Tomohisa Matsunaga
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Urology, Osaka Medical College, Osaka, Japan
| | - Yang Liu
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Institute of Hepatobiliary Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Haruhito Azuma
- Department of Urology, Osaka Medical College, Osaka, Japan
| | - David Perkins
- Department of Medicine, University of Illinois, Chicago, IL, USA
| | | | - Hao Zhou
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Abdallah Elkhal
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Stefan G. Tullius
- Division of Transplant Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
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23
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Silva RCMC, Panis C, Pires BRB. Lessons from transmissible cancers for immunotherapy and transplant. Immunol Med 2021; 45:146-161. [PMID: 34962854 DOI: 10.1080/25785826.2021.2018783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
The emergence of horizontal transmission of cancer between vertebrates is an issue that interests scientists and medical society. Transmission requires: (i) a mechanism by which cancer cells can transfer to another organism and (ii) a repressed immune response on the part of the recipient. Transmissible tumors are unique models to comprehend the responses and mechanisms mediated by the major histocompatibility complex (MHC), which can be transposed for transplant biology. Here, we discuss the mechanisms involved in immune-mediated tissue rejection, making a parallel with transmissible cancers. We also discuss cellular and molecular mechanisms involved in cancer immunotherapy and anti-rejection therapies.
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Affiliation(s)
- Rafael Cardoso Maciel Costa Silva
- Laboratory of Immunoreceptors and Signaling, Instituto de Biofísica Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio De Janeiro, Brazil
| | - Carolina Panis
- Laboratory of Tumor Biology, State University of West Paraná, UNIOESTE, Francisco Beltrão, Brazil
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24
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Fan X, Zhou Y, Guo X, Xu M. Utilizing single-cell RNA sequencing for analyzing the characteristics of PBMC in patients with Kawasaki disease. BMC Pediatr 2021; 21:277. [PMID: 34126969 PMCID: PMC8201934 DOI: 10.1186/s12887-021-02754-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/02/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Kawasaki disease (KD) is the main cause of acquired heart disease in children and can lead to coronary artery lesions. This present study was designed to analyze the characteristics of KD peripheral blood mononuclear cells (PBMC) through single-cell RNA sequencing (scRNA-seq) and to explore the potential molecular mechanism of KD. METHODS PBMC was collected from one healthy child and one KD patient, and was used to single-cell RNA sequencing for cell clusters identification and differently expressed gene (DEG) determination. GO function enrichment analysis of DEG in B cell and T cells were performed to explore the most active biological function in KD immune cells. RESULTS Twelve cell clusters can be identified in two samples. Compared with healthy child, naive CD8+ T cell, T helper cell and B cell in KD child were decreased, mainly immune-related T cells, and natural killer T (NKT) cell were increased. Cell activation, lymphocyte activation and regulation of immune system process were 3 GO function shared by all four types of T cells and B cell. CONCLUSIONS Immune cell disorder appears in the KD patient at single cell level by scRNA-seq.
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Affiliation(s)
- Xue Fan
- The Department of Pediatric Cardiology, Shenzhen Children's Hospital of China Medical University, Shenzhen, 518038, China
| | - Yuhan Zhou
- Department of Pediatric, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, 519100, Zhuhai, China
| | - Xin Guo
- The Department of Pediatric, Shenzhen Children's Hospital of China Medical University, Longgang District Maternal and Children Health Care Hospital, Shenzhen, 518038, China
| | - Mingguo Xu
- The Department of Pediatric Cardiology, Shenzhen Children's Hospital of China Medical University, Shenzhen, 518038, China. .,The Department of Pediatric, Shenzhen Children's Hospital of China Medical University, Longgang District Maternal and Children Health Care Hospital, Shenzhen, 518038, China.
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25
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Tomasi R, Tariq M, Hübner M, Strauss G, Längin M, Zeuzem-Lampert C, Vandewiele S, Kreth S, Abicht JM. T-Cell Response in a Cardiac Xenotransplant Model. EXP CLIN TRANSPLANT 2021; 19:708-716. [PMID: 34085920 DOI: 10.6002/ect.2020.0359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Despite the advances in preclinical cardiac xenotransplantation, the immune reactions caused by species differences are not fully understood. Hyperacute rejection can now be avoided using genetically engineered donor organs, but cellmediated rejection by the adaptive immune response has not been addressed successfully. Here we investigated the initial human pan-T-cell reaction using a pig-human blood working heart model. MATERIALS AND METHODS Porcine wild-type hearts (n = 7) were perfused with human blood in a biventricular working heart system for 3 hours. As control, blood from the same human donors was circulated without a pig heart. Pan-T cells were selectively extracted from blood taken before and at the end of the perfusion cycle. The relative mRNA expression of selected target genes (real-time quantitative polymerase chain reaction) and the expression of microRNAs were determined. RESULTS After xenogeneic organ perfusion, there was a moderate upregulation of several CD4+ marker cytokines (interleukin 2, interleukin 4, interferon γ) compared with control. We found a distinct increase in the mRNA expression of granzyme B and perforin, key markers of cytotoxic T cells. No differences in the marker genes of regulatory T cells were evident. Levels of the anti-inflammatory microRNAs miR-16 and miR-93 were significantly higher in the xenoperfused group than in the control group. CONCLUSIONS This study demonstrated that contact of human blood with pig endothelium activates cytotoxic T cells within the first few hours, indicating acute rejection processes. This is accompanied by upregulation of anti-inflammatory microRNAs, which may represent compensatory anti-inflammatory mechanisms.
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Affiliation(s)
- Roland Tomasi
- From the Department of Anesthesiology, University Hospital, Ludwig-Maximilians-University of Munich, Munich, Germany.,From the Walter-Brendel Center of Experimental Medicine, Faculty of Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany
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26
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Yao T, Zha D, Gao P, Wu X. Silencing circ-USP1 protects the renal tubular from kidney injury induced by hypoxia via modulating miR-194-5p/DNMT3A axis in acute renal allografts. J Cell Mol Med 2021; 25:5940-5948. [PMID: 33484504 PMCID: PMC8256350 DOI: 10.1111/jcmm.16286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/22/2020] [Accepted: 01/05/2021] [Indexed: 12/15/2022] Open
Abstract
Recent studies indicate that circular RNAs are involved in dysregulation of kidney injury. Nevertheless, the underlying mechanisms remain largely unclear. Therefore, this study sought to investigate the role of circ-USP1 in the pathogenesis of early renal allografts. Thirty-two male C57BL/6J mice aged between 6 and 8 weeks were divided into the sham and allograft groups. Thereafter, the association between miR-194-5p, circ-USP1 and DNMT3A was confirmed using a combination of bioinformatics and the luciferase reporter gene assay. Additionally, the expression of circ-USP1, miR-194-5p and DNMT3A mRNA was detected through qPCR. Afterwards, the Western blot assay was performed to examine the expression of DNMT3A protein. Finally, the TUNEL assay was conducted to determine the rate of apoptosis in DNMT3A cells. The expression of circ-USP1 increased, while that of miR-194-5p decreased in renal allografts. Additionally, silencing circ-USP1 reduced kidney injuries caused by renal allografts in mice. Moreover, miR-194-5p was a target for circ-USP1, and DNMT3A was a target of miR-194-5p. Finally, it was shown that silencing circ-USP1 reduced DNMT3A expression in the kidney of mice that received renal allografts. Circ-USP1 functions as a competing endogenous RNA for miR-194-5p. This occurs in order to regulate DNMT3A expression in kidney injury induced by hypoxia in acute renal allografts.
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Affiliation(s)
- Tao Yao
- Department of NephrologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Dongqing Zha
- Department of NephrologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Ping Gao
- Department of NephrologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Xiaoyan Wu
- Department of NephrologyZhongnan Hospital of Wuhan UniversityWuhanChina
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27
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Wu Z, Liang J, Huang W, Jiang L, Paul C, Gao X, Alam P, Kanisicak O, Xu M, Wang Y. Immunomodulatory effects of mesenchymal stem cells for the treatment of cardiac allograft rejection. Exp Biol Med (Maywood) 2020; 246:851-860. [PMID: 33327780 DOI: 10.1177/1535370220978650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Heart transplantation continues to be the gold standard clinical intervention to treat patients with end-stage heart failure. However, there are major complications associated with this surgical procedure that reduce the survival prognosis of heart transplant patients, including allograft rejection, malignancies, infections, and other complications that arise from the use of broad-spectrum immunosuppression drugs. Recent studies have demonstrated the use of mesenchymal stem cells (MSCs) against allotransplantation rejection in both in vitro and in vivo settings due to their immunomodulatory properties. Therefore, utilization of MSCs provides new and exciting strategies to improve heart transplantation and potentially reduce the use of broad-spectrum immunosuppression drugs while alleviating allograft rejection. In this review, we will discuss the current research on the mechanisms of cardiac allograft rejection, the physiological and immunological characteristics of MSCs, the effects of MSCs on the immune system, and immunomodulation of heart transplantation by MSCs.
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Affiliation(s)
- Zhichao Wu
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Jialiang Liang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Wei Huang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Lin Jiang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Christian Paul
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Xiang Gao
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Perwez Alam
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Onur Kanisicak
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Meifeng Xu
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Yigang Wang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
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28
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Gapud EJ, Trejo-Zambrano MI, Gomez-Banuelos E, Tiniakou E, Antiochos B, Granville DJ, Andrade F, Casciola-Rosen L, Rosen A. Granzyme B Induces IRF-3 Phosphorylation through a Perforin-Independent Proteolysis-Dependent Signaling Cascade without Inducing Cell Death. THE JOURNAL OF IMMUNOLOGY 2020; 206:335-344. [PMID: 33288544 DOI: 10.4049/jimmunol.2000546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 11/11/2020] [Indexed: 11/19/2022]
Abstract
Granzyme B (GrB) is an immune protease implicated in the pathogenesis of several human diseases. In the current model of GrB activity, perforin determines whether the downstream actions of GrB occur intracellularly or extracellularly, producing apoptotic cytotoxicity or nonapoptotic effects, respectively. In the current study, we demonstrate the existence of a broad range of GrB-dependent signaling activities that 1) do not require perforin, 2) occur intracellularly, and 3) for which cell death is not the dominant outcome. In the absence of perforin, we show that GrB enzymatic activity still induces substoichiometric activation of caspases, which through nonlethal DNA damage response signals then leads to activity-associated phosphorylation of IFN regulatory factor-3. These findings illustrate an unexpected potential interface between GrB and innate immunity separate from the traditional role of GrB in perforin-dependent GrB-mediated apoptosis that could have mechanistic implications for human disease.
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Affiliation(s)
- Eric J Gapud
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | | | - Eduardo Gomez-Banuelos
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Eleni Tiniakou
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Brendan Antiochos
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - David J Granville
- International Collaboration on Repair Discoveries Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia V5Z 1M9, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V5Z 1M9, Canada
| | - Felipe Andrade
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Livia Casciola-Rosen
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Antony Rosen
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224; .,Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21224; and.,Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD 21224
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29
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Fritz NM, Stamminger T, Ramsperger-Gleixner M, Kuckhahn AV, Müller R, Weyand M, Heim C. Cytomegalovirus chemokine receptor M33 knockout reduces chronic allograft rejection in a murine aortic transplant model. Transpl Immunol 2020; 64:101359. [PMID: 33301898 DOI: 10.1016/j.trim.2020.101359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/03/2020] [Accepted: 12/03/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Numerous studies suggest that cytomegalovirus (CMV) infection may act as isolated risk factor in the development of cardiac allograft vasculopathy (CAV). Viral G protein-coupled receptors (GPCRs) are thought to contribute to the pathogenic changes associated with CMV infection. The aim of this study was to investigate the role of murine cytomegalovirus GPCR M33 in the development of CAV in a murine aortic allograft model. METHODS MHC I-mismatched aortas of C.B10 (H2b) mice were transplanted into BALB/c (H2d) recipients, which were either mock-infected, infected with wild type (WT) MCMV or MCMV with a deleted M33-receptor gene (delM33). Persistence of cytomegalovirus infection was confirmed by qPCR and by luciferase assay to ensure active viral replication. Grafts were harvested on days 21 and 37 for intragraft mRNA expression and histological analysis. RESULTS Active viral replication was demonstrated and MCMV presence was confirmed by PCR within spleen, liver, salivary glands, lung and the aortic transplant. Infection with delM33 resulted in significantly less intimal proliferation compared to WT-MCMV but more pronounced proliferation than in mock-infected allografts (32.19% [delM33] vs. 41.71% [WT-MCMV] vs. 24.33% [MCMV-]). Intragraft expression of most analyzed genes was significantly increased in infected mice. VCAM-1, ICAM-1, PDGFβ, CXCR3 and Granzyme B were distinctly less expressed in grafts of delM33 infected compared to WT infected mice. Cellular infiltration revealed reduced dendritic cells and T cells in grafts infected with delM33 compared to WT MCMV. CONCLUSIONS These data suggest that the MCMV encoded receptor M33 plays an important role as a viral effector mechanism contributing to the development of CAV in a murine aortic transplant model.
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Affiliation(s)
- Niklas M Fritz
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstraße 12, 91054 Erlangen, Germany
| | - Thomas Stamminger
- Institute for Virology, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Martina Ramsperger-Gleixner
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstraße 12, 91054 Erlangen, Germany
| | - Annika V Kuckhahn
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstraße 12, 91054 Erlangen, Germany
| | - Regina Müller
- Institute of Clinical and Molecular Virology, Friedrich-Alexander University Erlangen-Nürnberg, Schlossgarten 4, 91054 Erlangen, Germany
| | - Michael Weyand
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstraße 12, 91054 Erlangen, Germany
| | - Christian Heim
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstraße 12, 91054 Erlangen, Germany.
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30
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Choi KM, Cho DH, Joo MS, Choi HS, Kim MS, Han HJ, Cho MY, Hwang SD, Kim DH, Park CI. Functional characterization and gene expression profile of perforin-2 in starry flounder (Platichthys stellatus). FISH & SHELLFISH IMMUNOLOGY 2020; 107:511-518. [PMID: 33217563 DOI: 10.1016/j.fsi.2020.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/26/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
The membrane attack complex/perforin (MACPF) superfamily consists of multifunctional proteins that form pores on the membrane surface of microorganisms to induce their death and have various immune-related functions. PFN2 is a perforin-like protein with an MACPF domain, and humans with deficient PFN2 levels have increased susceptibility to bacterial infection, which can lead to fatal consequences for some patients. Therefore, in this study, we confirmed the antimicrobial function of PFN2 in starry flounder (Platichthys stellatus). The molecular properties were confirmed based on the verified amino acid sequence of PsPFN2. In addition, the expression characteristics of tissue-specific and pathogen-specific PsPFN2 mRNA were also confirmed. The recombinant protein was produced using Escherichia coli, and the antimicrobial activity was then confirmed. The coding sequence of PFN2 (PsPFN2) in P. stellatus consists of 710 residues. The MACPF domain was conserved throughout evolution, as shown by multiple sequence alignment and phylogenetic analysis. PsPFN2 mRNA is abundantly distributed in immune-related organs such as the spleen and gills of healthy starry flounder, and significant expression changes were confirmed after artificial infection by bacteria or viruses. We cloned the MACPF domain region of PFN2 to produce a recombinant protein (rPFN2) and confirmed its antibacterial effect against a wide range of bacterial species and the parasite (Miamiensis avidus).
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Affiliation(s)
- Kwang-Min Choi
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea
| | - Dong-Hee Cho
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea
| | - Min-Soo Joo
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea
| | - Hye-Sung Choi
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Myoung Sug Kim
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Hyun-Ja Han
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Mi Young Cho
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Seong Don Hwang
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Do-Hyung Kim
- Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University, 45, Yongso-ro, Nam-Gu., Busan, Republic of Korea.
| | - Chan-Il Park
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea.
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31
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Smith TA, Ghergherehchi CL, Mikesh M, Shores JT, Tucker HO, Bittner GD. Polyethylene glycol-fusion repair of sciatic allografts in female rats achieves immunotolerance via attenuated innate and adaptive responses. J Neurosci Res 2020; 98:2468-2495. [PMID: 32931034 DOI: 10.1002/jnr.24720] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 07/31/2020] [Accepted: 08/11/2020] [Indexed: 12/17/2022]
Abstract
Ablation/segmental loss peripheral nerve injuries (PNIs) exhibit poor functional recovery due to slow and inaccurate outgrowth of regenerating axons. Viable peripheral nerve allografts (PNAs) as growth-guide conduits are immunologically rejected and all anucleated donor/host axonal segments undergo Wallerian degeneration. In contrast, we report that ablation-type sciatic PNIs repaired by neurorrhaphy of viable sciatic PNAs and a polyethylene glycol (PEG)-fusion protocol using PEG immediately restored axonal continuity for many axons, reinnervated/maintained their neuromuscular junctions, and prevented much Wallerian degeneration. PEG-fused PNAs permanently restored many sciatic-mediated behaviors within 2-6 weeks. PEG-fused PNAs were not rejected even though host/donors were neither immunosuppressed nor tissue-matched in outbred female Sprague Dawley rats. Innate and adaptive immune responses to PEG-fused sciatic PNAs were analyzed using electron microscopy, immunohistochemistry, and quantitative reverse transcription polymerase chain reaction for morphological features, T cell and macrophage infiltration, major histocompatibility complex (MHC) expression, apoptosis, expression of cytokines, chemokines, and cytotoxic effectors. PEG-fused PNAs exhibited attenuated innate and adaptive immune responses by 14-21 days postoperatively, as evidenced by (a) many axons and cells remaining viable, (b) significantly reduced infiltration of cytotoxic and total T cells and macrophages, (c) significantly reduced expression of inflammatory cytokines, chemokines, and MHC proteins, (d) consistently low apoptotic response. Morphologically and/or biochemically, PEG-fused sciatic PNAs often resembled sciatic autografts or intact sciatic nerves. In brief, PEG-fused PNAs are an unstudied, perhaps unique, example of immune tolerance of viable allograft tissue in a nonimmune-privileged environment and could greatly improve the clinical outcomes for PNIs relative to current protocols.
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Affiliation(s)
- Tyler A Smith
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA
| | | | - Michelle Mikesh
- Department of Neuroscience, University of Texas at Austin, Austin, TX, USA
| | - Jaimie T Shores
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation (VCA) Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Haley O Tucker
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA
| | - George D Bittner
- Department of Neuroscience, University of Texas at Austin, Austin, TX, USA
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Ma R, Yu Y, Liu X, Lei Y, Zhou S, Xie X, Jin S, Qian D, Yin F. Transcriptomic analysis of Nibea albiflora skin in response to infection by Cryptocaryon irritans. FISH & SHELLFISH IMMUNOLOGY 2020; 98:819-831. [PMID: 31751659 DOI: 10.1016/j.fsi.2019.11.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 11/13/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
Massive infection caused by Cryptocaryon irritans is detrimental to the development of marine aquaculture. Recently, our lab found that Nibea albiflora has low sensitivity and low mortality to C. irritans infection. The present study was designed to investigate the mechanisms of the N. albiflora response to C. irritans infection by analyzing transcriptome changes in the skin. Skin samples of control and experimental groups with C. irritans infection were collected at 24 and 72 h (24 h control, 24 h post-infection, 72 h control, and 72 h post-infection). Three parallels were set for each group and sample time, and a total of 12 skin samples were collected for sequencing. Overall, 297,489,843 valid paired-end reads and 48,817 unigenes were obtained with an overall length of 59,010,494 nt. In pairwise comparisons, changes in expression occurred in 1621 (764 upregulated and 857 downregulated), 285 (180 upregulated and 105 downregulated), 993 (489 upregulated and 504 downregulated), and 37 (8 upregulated and 29 downregulated) genes at 24 h control vs 24 h post-infection, 72 h control vs 72 h post-infection, 24 h post-infection vs 72 h post-infection, and 24 h control vs 72 h control, respectively. Gene Ontology (GO) analysis of differentially expressed genes (DEGs) indicated that the number of genes enriched in GO sub-categories were ordered 24 h control vs 24 h post-infection > 24 h post-infection vs 72 h post-infection >72 h control vs 72 h post-infection > 24 h control vs 72 h control. Further analysis showed that immune-related GO terms (including immune system process, complement activation, and humoral immunity) were significantly enriched at both 72 h control vs 72 h post-infection and 24 h post-infection vs 72 h post-infection, but no immune-related GO terms were significantly enriched in the 24 h control vs 72 h control and at 24 h control vs 24 h post-infection, indicating that C. irritans infection mainly affected the physiological metabolism of N. albiflora at an early stage (24 h), and immune-related genes play an important role at a later stage (72 h) of infection. In KEGG pathway analysis, the complement and coagulation cascade pathway are involved in early infection. Hematopoietic cell lineage, natural killer (NK) cell-mediated cytotoxicity, and the intestinal immune network for IgA production are involved in later infection. Further analysis showed that the alternative pathway of complement and coagulation cascades plays an important role in the resistance of N. albiflora to early C. irritans infection. During late infection, CD34, IgM, and IgD were significantly upregulated in the hematopoietic cell lineage pathway. CCR9 was significantly downregulated, and IGH and PIGR were significantly upregulated in the intestinal immune network for IgA production. GZMB and IGH were significantly downregulated in NK cell-mediated cytotoxicity. These findings indicate that acquired immunity at the mRNA level was initiated during later infection. In addition, the IL-17 signaling pathway was enriched by downregulated DEGs at 24 h post-infection vs 72 h post-infection, suggesting the inflammatory response at 24 h was stronger than at 72 h and the invasion of the parasite has a greater impact on the host.
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Affiliation(s)
- Rongrong Ma
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China
| | - Youbin Yu
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China
| | - Xiao Liu
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China
| | - Yuhua Lei
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China
| | - Suming Zhou
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China
| | - Xiao Xie
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China
| | - Shan Jin
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China
| | - Dong Qian
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China
| | - Fei Yin
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Centre for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China; School of Marine Sciences, Ningbo University, 169 South Qixing Road, Ningbo, 315832, PR China.
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Perforin and Granzyme B Expressed by Murine Myeloid-Derived Suppressor Cells: A Study on Their Role in Outgrowth of Cancer Cells. Cancers (Basel) 2019; 11:cancers11060808. [PMID: 31212684 PMCID: PMC6627828 DOI: 10.3390/cancers11060808] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/10/2019] [Accepted: 06/07/2019] [Indexed: 02/06/2023] Open
Abstract
A wide-range of myeloid-derived suppressor cell (MDSC)-mediated immune suppressive functions has previously been described. Nevertheless, potential novel mechanisms by which MDSCs aid tumor progression are, in all likelihood, still unrecognized. Next to its well-known expression in natural killer cells and cytotoxic T lymphocytes (CTLs), granzyme B (GzmB) expression has been found in different cell types. In an MDSC culture model, we demonstrated perforin and GzmB expression. Furthermore, similar observations were made in MDSCs isolated from tumor-bearing mice. Even in MDSCs from humans, GzmB expression was demonstrated. Of note, B16F10 melanoma cells co-cultured with perforin/GzmB knock out mice (KO) MDSCs displayed a remarkable decrease in invasive potential. B16F10 melanoma cells co-injected with KO MDSCs, displayed a significant slower growth curve compared to tumor cells co-injected with wild type (WT) MDSCs. In vivo absence of perforin/GzmB in MDSCs resulted in a higher number of CD8+ T-cells. Despite this change in favor of CD8+ T-cell infiltration, we observed low interferon-γ (IFN-γ) and high programmed death-ligand 1 (PD-L1) expression, suggesting that other immunosuppressive mechanisms render these CD8+ T-cells dysfunctional. Taken together, our results suggest that GzmB expression in MDSCs is another means to promote tumor growth and warrants further investigation to unravel the exact underlying mechanism.
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Mac QD, Mathews DV, Kahla JA, Stoffers CM, Delmas OM, Holt BA, Adams AB, Kwong GA. Non-invasive early detection of acute transplant rejection via nanosensors of granzyme B activity. Nat Biomed Eng 2019; 3:281-291. [PMID: 30952979 PMCID: PMC6452901 DOI: 10.1038/s41551-019-0358-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 01/16/2019] [Indexed: 12/14/2022]
Abstract
The early detection of the onset of transplant rejection is critical for the long-term survival of patients. The diagnostic gold standard for detecting transplant rejection involves a core biopsy, which is invasive, has limited predictive power and carries a morbidity risk. Here, we show that nanoparticles conjugated with a peptide substrate specific for the serine protease granzyme B, which is produced by recipient T cells during the onset of acute cellular rejection, can serve as a non-invasive biomarker of early rejection. When administered systemically in mouse models of skin graft rejection, these nanosensors preferentially accumulate in allograft tissue, where they are cleaved by granzyme B, releasing a fluorescent reporter that filters into the recipient's urine. Urinalysis then discriminates the onset of rejection with high sensitivity and specificity before features of rejection are apparent in grafted tissues. Moreover, in mice treated with subtherapeutic levels of immunosuppressive drugs, the reporter signals in urine can be detected before graft failure. This method may enable routine monitoring of allograft status without the need for biopsies.
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Affiliation(s)
- Quoc D Mac
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Dave V Mathews
- Emory Transplant Center, Emory University, Atlanta, GA, USA
| | - Justin A Kahla
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Claire M Stoffers
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Olivia M Delmas
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Brandon Alexander Holt
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Andrew B Adams
- Emory Transplant Center, Emory University, Atlanta, GA, USA.
- Department of Surgery, Emory University School of Medicine, Atlanta, GA, USA.
| | - Gabriel A Kwong
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA.
- Parker H. Petit Institute of Bioengineering and Bioscience, Atlanta, GA, USA.
- Institute for Electronics and Nanotechnology, Georgia Tech, Atlanta, GA, USA.
- Integrated Cancer Research Center, Georgia Tech, Atlanta, GA, USA.
- The Georgia Immunoengineering Consortium, Emory University and Georgia Tech, Atlanta, GA, USA.
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Rey K, Manku S, Enns W, Van Rossum T, Bushell K, Morin RD, Brinkman FSL, Choy JC. Disruption of the Gut Microbiota With Antibiotics Exacerbates Acute Vascular Rejection. Transplantation 2019. [PMID: 29538261 DOI: 10.1097/tp.0000000000002169] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND The gut microbiota influences many immunological processes but how its disruption affects transplant rejection is poorly understood. METHODS Interposition grafting of aortic segments was used to examine vascular rejection. The gut microbiota was disrupted in graft recipients using an antibiotic cocktail (ampicillin, vancomycin, metronidazole, neomycin sulfate) in their drinking water. RESULTS Treatment of mice with antibiotics severely reduced total bacterial content in the intestine and disrupted the bacterial composition. Short-term treatment of mice for only the first 3 weeks of life resulted in the population of the intestine in mature mice with bacterial communities that were mildly different from untreated mice, containing slightly more Clostridia and less Bacteroides. Antibiotic disruption of the gut microbiota of graft recipients, either for their entire life or only during the first 3 weeks of life, resulted in increased medial injury of allograft arteries that is reflective of acute vascular rejection but did not affect intimal thickening reflective of transplant arteriosclerosis. Exacerbated vascular rejection resulting from disruption of the gut microbiota was related to increased infiltration of allograft arteries by neutrophils. CONCLUSIONS Disruption of the gut microbiota early in life results in exacerbation of immune responses that cause acute vascular rejection.
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Affiliation(s)
- Kevin Rey
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Sukhbir Manku
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Winnie Enns
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Thea Van Rossum
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Kevin Bushell
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Ryan D Morin
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Fiona S L Brinkman
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Jonathan C Choy
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
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Ajith A, Portik-Dobos V, Nguyen-Lefebvre AT, Callaway C, Horuzsko DD, Kapoor R, Zayas C, Maenaka K, Mulloy LL, Horuzsko A. HLA-G dimer targets Granzyme B pathway to prolong human renal allograft survival. FASEB J 2019; 33:5220-5236. [PMID: 30620626 DOI: 10.1096/fj.201802017r] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Human leukocyte antigen G (HLA-G), a nonclassic HLA class Ib molecule involved in the maintenance of maternal tolerance to semiallogeneic fetal tissues during pregnancy, has emerged as a potential therapeutic target to control allograft rejection. We demonstrate here that the level of soluble HLA-G dimer was higher in a group of 90 patients with a functioning renal allograft compared with 40 patients who rejected (RJ) their transplants. The HLA-G dimer level was not affected by demographic status. One of the potential mechanisms in tissue-organ allograft rejection involves the induction of granzymes and perforin, which are the main effector molecules expressed by CD8+ cytotoxic T lymphocytes and function to destroy allogeneic transplants. Using genomics and molecular and cellular analyses of cells from T-cell-mediated RJ and nonrejected kidney transplant patients, cells from leukocyte Ig-like receptor B1 (LILRB1) transgenic mice, humanized mice, and genetically engineered HLA-G dimer, we demonstrated a novel mechanism by which HLA-G dimer inhibits activation and cytotoxic capabilities of human CD8+ T cells. This mechanism implicated the down-regulation of Granzyme B expression and the essential involvement of LILRB1. Thus, HLA-G dimer has the potential to be a specific and effective therapy for prevention of allograft rejection and prolongation of graft survival.-Ajith, A., Portik-Dobos, V., Nguyen-Lefebvre, A. T., Callaway, C., Horuzsko, D. D., Kapoor, R., Zayas, C., Maenaka, K., Mulloy, L. L., Horuzsko, A. HLA-G dimer targets Granzyme B pathway to prolong human renal allograft survival.
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Affiliation(s)
- Ashwin Ajith
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Vera Portik-Dobos
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Anh Thu Nguyen-Lefebvre
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Christine Callaway
- Division of Nephrology, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Daniel D Horuzsko
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Rajan Kapoor
- Division of Nephrology, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Carlos Zayas
- Division of Nephrology, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Katsumi Maenaka
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Laura L Mulloy
- Division of Nephrology, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Anatolij Horuzsko
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
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Shergalis A, Bankhead A, Luesakul U, Muangsin N, Neamati N. Current Challenges and Opportunities in Treating Glioblastoma. Pharmacol Rev 2018; 70:412-445. [PMID: 29669750 PMCID: PMC5907910 DOI: 10.1124/pr.117.014944] [Citation(s) in RCA: 494] [Impact Index Per Article: 82.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma multiforme (GBM), the most common and aggressive primary brain tumor, has a high mortality rate despite extensive efforts to develop new treatments. GBM exhibits both intra- and intertumor heterogeneity, lending to resistance and eventual tumor recurrence. Large-scale genomic and proteomic analysis of GBM tumors has uncovered potential drug targets. Effective and “druggable” targets must be validated to embark on a robust medicinal chemistry campaign culminating in the discovery of clinical candidates. Here, we review recent developments in GBM drug discovery and delivery. To identify GBM drug targets, we performed extensive bioinformatics analysis using data from The Cancer Genome Atlas project. We discovered 20 genes, BOC, CLEC4GP1, ELOVL6, EREG, ESR2, FDCSP, FURIN, FUT8-AS1, GZMB, IRX3, LITAF, NDEL1, NKX3-1, PODNL1, PTPRN, QSOX1, SEMA4F, TH, VEGFC, and C20orf166AS1 that are overexpressed in a subpopulation of GBM patients and correlate with poor survival outcomes. Importantly, nine of these genes exhibit higher expression in GBM versus low-grade glioma and may be involved in disease progression. In this review, we discuss these proteins in the context of GBM disease progression. We also conducted computational multi-parameter optimization to assess the blood-brain barrier (BBB) permeability of small molecules in clinical trials for GBM treatment. Drug delivery in the context of GBM is particularly challenging because the BBB hinders small molecule transport. Therefore, we discuss novel drug delivery methods, including nanoparticles and prodrugs. Given the aggressive nature of GBM and the complexity of targeting the central nervous system, effective treatment options are a major unmet medical need. Identification and validation of biomarkers and drug targets associated with GBM disease progression present an exciting opportunity to improve treatment of this devastating disease.
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Affiliation(s)
- Andrea Shergalis
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
| | - Armand Bankhead
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
| | - Urarika Luesakul
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
| | - Nongnuj Muangsin
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
| | - Nouri Neamati
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
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Bao CX, Chen HX, Mou XJ, Zhu XK, Zhao Q, Wang XG. RETRACTED: GZMB gene silencing confers protection against synovial tissue hyperplasia and articular cartilage tissue injury in rheumatoid arthritis through the MAPK signaling pathway. Biomed Pharmacother 2018; 103:346-354. [PMID: 29669300 DOI: 10.1016/j.biopha.2018.04.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/03/2018] [Accepted: 04/03/2018] [Indexed: 12/16/2022] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. An Expression of Concern for this article was previously published while an investigation was conducted (see related editorial: https://doi.org/10.1016/j.biopha.2022.113812). This retraction notice supersedes the Expression of Concern published earlier. Concern was raised about the reliability of the Western blot data in Figure 7C, which appear to contain a similar phenotype to those found in other publications, as detailed here: https://pubpeer.com/publications/7DD2DDC979F8CE2B00555332B01F81; and here: https://docs.google.com/spreadsheets/d/1r0MyIYpagBc58BRF9c3luWNlCX8VUvUuPyYYXzxWvgY/edit#gid=262337249. The journal requested the corresponding author comment on these concerns and provide the associated raw data. The authors did not respond to this request and therefore the Editor-in-Chief decided to retract the article.
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Affiliation(s)
- Cui-Xia Bao
- Clinical Laboratory, Yantai Yuhuangding Hospital, Yantai 264000, PR China
| | - Hai-Xia Chen
- Clinical Laboratory, Yeda Hospital, Yantai 264000, PR China
| | - Xue-Jie Mou
- Clinical Laboratory, Yantai Taocun Central Hospital, Yantai 265301, PR China
| | - Xiang-Kui Zhu
- Department of Radiology, Yantai Oral Hospital, Yantai 264000, PR China
| | - Qi Zhao
- Clinical Laboratory, Yantai Yuhuangding Hospital, Yantai 264000, PR China
| | - Xin-Guang Wang
- Department of Blood Transfusion, Yeda Hospital, Yantai 264000, PR China.
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Spicer BA, Conroy PJ, Law RH, Voskoboinik I, Whisstock JC. Perforin—A key (shaped) weapon in the immunological arsenal. Semin Cell Dev Biol 2017; 72:117-123. [DOI: 10.1016/j.semcdb.2017.07.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 07/05/2017] [Accepted: 07/21/2017] [Indexed: 12/31/2022]
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Sula Karreci E, Eskandari SK, Dotiwala F, Routray SK, Kurdi AT, Assaker JP, Luckyanchykov P, Mihali AB, Maarouf O, Borges TJ, Alkhudhayri A, Patel KR, Radwan A, Ghobrial I, McGrath M, Chandraker A, Riella LV, Elyaman W, Abdi R, Lieberman J, Azzi J. Human regulatory T cells undergo self-inflicted damage via granzyme pathways upon activation. JCI Insight 2017; 2:91599. [PMID: 29093262 DOI: 10.1172/jci.insight.91599] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 09/25/2017] [Indexed: 12/13/2022] Open
Abstract
Tregs hold great promise as a cellular therapy for multiple immunologically mediated diseases, given their ability to control immune responses. The success of such strategies depends on the expansion of healthy, suppressive Tregs ex vivo and in vivo following the transfer. In clinical studies, levels of transferred Tregs decline sharply in the blood within a few days of the transfer. Tregs have a high rate of apoptosis. Here, we describe a new mechanism of Treg self-inflicted damage. We show that granzymes A and -B (GrA and GrB), which are highly upregulated in human Tregs upon stimulation, leak out of cytotoxic granules to induce cleavage of cytoplasmic and nuclear substrates, precipitating apoptosis in target cells. GrA and GrB substrates were protected from cleavage by inhibiting granzyme activity in vitro. Additionally, we show - by using cytometry by time of flight (CYTOF) - an increase in GrB-expressing Tregs in the peripheral blood and renal allografts of transplant recipients undergoing rejection. These GrB-expressing Tregs showed an activated phenotype but were significantly more apoptotic than non-GrB expressing Tregs. This potentially novel finding improves our understanding of Treg survival and suggests that manipulating Gr expression or activity might be useful for designing more effective Treg therapies.
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Affiliation(s)
- Esilida Sula Karreci
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Siawosh K Eskandari
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Farokh Dotiwala
- Program in Cellular and Molecular Medicine, Boston Children's Hospital
| | - Sujit K Routray
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Ahmed T Kurdi
- Department of Medical Oncology, Dana-Farber Cancer Institute, and
| | - Jean Pierre Assaker
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Pavlo Luckyanchykov
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Albana B Mihali
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Omar Maarouf
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Thiago J Borges
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Abdullah Alkhudhayri
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Kruti R Patel
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Massachusetts, USA
| | - Amr Radwan
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Irene Ghobrial
- Department of Medical Oncology, Dana-Farber Cancer Institute, and
| | - Martina McGrath
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Anil Chandraker
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Leonardo V Riella
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Wassim Elyaman
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Massachusetts, USA
| | - Reza Abdi
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
| | - Judy Lieberman
- Program in Cellular and Molecular Medicine, Boston Children's Hospital
| | - Jamil Azzi
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital
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Abstract
Green Fluorescent protein (GFP), used as a cellular tag, provides researchers with a valuable method of measuring gene expression and cell tracking. However, there is evidence to suggest that the immunogenicity and cytotoxicity of GFP potentially confounds the interpretation of in vivo experimental data. Studies have shown that GFP expression can deteriorate over time as GFP tagged cells are prone to death. Therefore, the cells that were originally marked with GFP do not survive and cannot be accurately traced over time. This review will present current evidence for the immunogenicity and cytotoxicity of GFP in in vivo studies by characterizing these responses.
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de Graav GN, Baan CC, Clahsen-van Groningen MC, Kraaijeveld R, Dieterich M, Verschoor W, von der Thusen JH, Roelen DL, Cadogan M, van de Wetering J, van Rosmalen J, Weimar W, Hesselink DA. A Randomized Controlled Clinical Trial Comparing Belatacept With Tacrolimus After De Novo Kidney Transplantation. Transplantation 2017; 101:2571-2581. [PMID: 28403127 DOI: 10.1097/tp.0000000000001755] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Belatacept, an inhibitor of the CD28-CD80/86 costimulatory pathway, allows for calcineurin-inhibitor free immunosuppressive therapy in kidney transplantation but is associated with a higher acute rejection risk than ciclosporin. Thus far, no biomarker for belatacept-resistant rejection has been validated. In this randomized-controlled trial, acute rejection rate was compared between belatacept- and tacrolimus-treated patients and immunological biomarkers for acute rejection were investigated. METHODS Forty kidney transplant recipients were 1:1 randomized to belatacept or tacrolimus combined with basiliximab, mycophenolate mofetil, and prednisolone. The 1-year incidence of biopsy-proven acute rejection was monitored. Potential biomarkers, namely, CD8CD28, CD4CD57PD1, and CD8CD28 end-stage terminally differentiated memory T cells were measured pretransplantation and posttransplantation and correlated to rejection. Pharmacodynamic monitoring of belatacept was performed by measuring free CD86 on monocytes. RESULTS The rejection incidence was higher in belatacept-treated than tacrolimus-treated patients: 55% versus 10% (P = 0.006). All 3 graft losses, due to rejection, occurred in the belatacept group. Although 4 of 5 belatacept-treated patients with greater than 35 cells CD8CD28 end-stage terminally differentiated memory T cells/μL rejected, median pretransplant values of the biomarkers did not differ between belatacept-treated rejectors and nonrejectors. In univariable Cox regressions, the studied cell subsets were not associated with rejection-risk. CD86 molecules on circulating monocytes in belatacept-treated patients were saturated at all timepoints. CONCLUSIONS Belatacept-based immunosuppressive therapy resulted in higher and more severe acute rejection compared with tacrolimus-based therapy. This trial did not identify cellular biomarkers predictive of rejection. In addition, the CD28-CD80/86 costimulatory pathway appeared to be sufficiently blocked by belatacept and did not predict rejection.
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Affiliation(s)
- Gretchen N de Graav
- 1 Division of Nephrology and Kidney Transplantation, Department of Internal Medicine, Erasmus MC, University Medical Center, Rotterdam, the Netherlands. 2 Department of Pathology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands. 3 Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, the Netherlands. 4 Department of Biostatistics, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
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Graft-Derived IL-6 Amplifies Proliferation and Survival of Effector T Cells That Drive Alloimmune-Mediated Vascular Rejection. Transplantation 2016; 100:2332-2341. [DOI: 10.1097/tp.0000000000001227] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Oghumu S, Nori U, Bracewell A, Zhang J, Bott C, Nadasdy GM, Brodsky SV, Pelletier R, Satoskar AR, Nadasdy T, Satoskar AA. Differential gene expression pattern in biopsies with renal allograft pyelonephritis and allograft rejection. Clin Transplant 2016; 30:1115-33. [PMID: 27352120 DOI: 10.1111/ctr.12795] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2016] [Indexed: 02/02/2023]
Abstract
Differentiating acute pyelonephritis (APN) from acute rejection (AR) in renal allograft biopsies can sometimes be difficult because of overlapping clinical and histologic features, lack of positive urine cultures,and variable response to antibiotics. We wanted to study differential gene expression between AR and APN using biopsy tissue. Thirty-three biopsies were analyzed using NanoString multiplex platform and PCR (6 transplant baseline biopsies, 8 AR, 15 APN [8 culture positive, 7 culture negative], and 4 native pyelonephritis [NP]). Additional 22 biopsies were tested by PCR to validate the results. CXCL9, CXCL10, CXCL11, and IDO1 were the top differentially expressed genes, upregulated in AR. Lactoferrin (LTF) and CXCL1 were higher in APN and NP. No statistically significant difference in transcript levels was seen between culture-positive and culture-negative APN biopsies. Comparing the overall mRNA signature using Ingenuity pathway analysis, interferon-gamma emerged as the dominant upstream regulator in AR and allograft APN, but not in NP (which clustered separately). Our study suggests that chemokine pathways in graft APN may differ from NP and in fact resemble AR, due to a component of alloreactivity, resulting in variable response to antibiotic treatment. Therefore, cautious addition of steroids might help in resistant cases of graft APN.
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Affiliation(s)
- Steve Oghumu
- Department of Pathology, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Uday Nori
- Nephrology, Department of Internal Medicine, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Anna Bracewell
- Nephrology, Department of Internal Medicine, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Jianying Zhang
- Department of Biostatistics, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Cherri Bott
- Department of Pathology, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Gyongyi M Nadasdy
- Department of Pathology, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Sergey V Brodsky
- Department of Pathology, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Ronald Pelletier
- Department of Surgery, Comprehensive Transplant Center, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Abhay R Satoskar
- Department of Pathology, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Tibor Nadasdy
- Department of Pathology, Ohio State University Wexner Medical Center, Columbus, OH, USA.
| | - Anjali A Satoskar
- Department of Pathology, Ohio State University Wexner Medical Center, Columbus, OH, USA.
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Matsuura Y, Yabu T, Shiba H, Moritomo T, Nakanishi T. Purification and characterization of a fish granzymeA involved in cell-mediated immunity. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 60:33-40. [PMID: 26872543 DOI: 10.1016/j.dci.2016.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/06/2016] [Accepted: 02/06/2016] [Indexed: 06/05/2023]
Abstract
Granzymes are serine proteases involved in the induction of cell death against non-self cells. The enzymes differ in their primary substrate specificity and have one of four hydrolysis activities: tryptase, Asp-ase, Met-ase and chymase. Although granzyme genes have been isolated from several fishes, evidence for their involvement in cytotoxicity has not yet been reported. In the present study, we attempted to purify and characterize a fish granzyme involved in cytotoxicity using ginbuna crucian carp. The cytotoxicity of leukocytes was significantly inhibited by the serine protease inhibitor ''3, 4-dichloroisocoumarin''. In addition, we found that granzymeA-like activity (hydrolysis of Z-GPR-MCA) was inhibited by the same inhibitor and significantly enhanced by allo-antigen stimulation in vivo. Proteins from leukocyte extracts were subjected to two steps of chromatographic purification using benzamidine-Sepharose and SP-Sepharose. The molecular weight of the purified enzyme was estimated to be 26,900 Da by SDS-PAGE analysis. The purified enzyme displayed a Km of 220 μM, a Kcat of 21.7 sec(-1) and a Kcat/Km of 98,796 sec(-1) M(-1) with an optimal pH of 9.5 for the Z-GPR-MCA substrate. The protease was totally inhibited by serine protease inhibitors and showed granzymeA-like substrate specificity. Therefore, we conclude that the purified enzyme belongs to the mammalian granzymeA (EC 3.4.21.78) and appears to be involved in cytotoxicity in fish.
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Affiliation(s)
- Yuta Matsuura
- Department of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa 252-0880, Japan
| | - Takeshi Yabu
- Department of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa 252-0880, Japan
| | - Hajime Shiba
- Department of Applied Biological Science, Nihon University, Fujisawa, Kanagawa 252-0880, Japan
| | - Tadaaki Moritomo
- Department of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa 252-0880, Japan
| | - Teruyuki Nakanishi
- Department of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa 252-0880, Japan.
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A Meta-analysis of the Significance of Granzyme B and Perforin in Noninvasive Diagnosis of Acute Rejection After Kidney Transplantation. Transplantation 2016; 99:1477-86. [PMID: 25643139 DOI: 10.1097/tp.0000000000000567] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Previous studies have reported that granzyme B (GZMB) and perforin (PRF) could serve as noninvasive biomarkers in the diagnosis of acute rejection (AR) after kidney transplant. Yet, their noninvasive diagnostic value in clinical practice is still unknown. METHODS To assess the noninvasive diagnostic performance of GZMB and PRF for AR, we performed a systematic search. After reviewing published studies in which both GZMB and PRF were detected, data on the diagnostic accuracy of separate and combined evaluation of GZMB and PRF were pooled. RESULTS Across 16 studies (680 subjects), summary sensitivity, specificity, positive likelihood ratios, and negative likelihood ratios with 95% confidence intervals were calculated. For overall GZMB analysis, the indices were 0.76 (0.71-0.81), 0.86 (0.82-0.89), 4.58 (3.36-6.25), and 0.32 (0.22-0.47), respectively. For overall PRF analysis, the indices were 0.83 (0.78-0.88), 0.86 (0.82-0.89), 4.82 (3.66-6.35), and 0.26 (0.18-0.37), respectively. Subgroup analyses showed similar results compared to overall study analyses. In analyses of combined evaluation of GZMB and PRF, the above indices were 0.65 (0.53-0.76), 0.96 (0.91-0.98), 12.66 (5.83-27.50), and 0.40 (0.23-0.69), respectively, when both markers were positive. The probability of developing AR in kidney transplant recipients increased from 15% to 73% when both GZMB and PRF tests were positive and was reduced to 2% if that were negative. CONCLUSIONS Currently, neither GZMB nor PRF, if evaluated alone, could be a convincing noninvasive diagnostic marker for AR in clinical practice. Combined use of PRF and GZMB post-kidney transplant may be a better choice in AR evaluation to direct allograft biopsy execution and earlier therapeutic intervention.
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Abstract
CD8+ T cells play a cardinal feature in response to alloantigens and are able to generate effector/memory T cells independently from CD4+ T cells. To investigate the impact of aging on CD8 T cells, we used a fully mismatched mouse skin transplant model. Our findings showed a prolonged allograft survival in older recipients associated with a significant increase of CD4+ and CD8+ CD44high CD62Llow effector/memory T cells and a reduced systemic IFNγ production. When reconstituting young CBA Rag-1 mice that lack mature T and B cells with old CD8+ T cells expressing clonal anti-H2K T cell receptor (TCR) alloreactive for MHC I, graft survival was significantly prolonged and comparable to those receiving young CD8+ T cells. Moreover, our data showed that reduced systemic IFNγ levels observed in old recipients had been linked to a compromised expression of the IL-2R β subunit (CD122) by old CD8+ T cells. In addition, we observed an impaired IFNγ production on IL-2 receptor activation. At the same time, gene profiling analysis of old CD8 T cells demonstrated reduced chemokine ligand-3 and CD40L expression that resulted in compromised CD8+ T cell/dendritic cell communication, leading to impaired migratory and phagocytic activity of CD11c cells.Collectively, our study demonstrated that aging delays allograft rejection. CD8 T cells play a critical role in this process linked to a compromised production of IFNγ, in addition to a defective IL-2 receptor signaling machinery and a defective communication between CD8 T cells and dendritic cells.
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Enns W, von Rossum A, Choy J. Mouse model of alloimmune-induced vascular rejection and transplant arteriosclerosis. J Vis Exp 2015:e52800. [PMID: 26066300 DOI: 10.3791/52800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Vascular rejection that leads to transplant arteriosclerosis (TA) is the leading representation of chronic heart transplant failure. In TA, the immune system of the recipient causes damage of the arterial wall and dysfunction of endothelial cells and smooth muscle cells. This triggers a pathological repair response that is characterized by intimal thickening and luminal occlusion. Understanding the mechanisms by which the immune system causes vasculature rejection and TA may inform the development of novel ways to manage graft failure. Here, we describe a mouse aortic interposition model that can be used to study the pathogenic mechanisms of vascular rejection and TA. The model involves grafting of an aortic segment from a donor animal into an allogeneic recipient. Rejection of the artery segment involves alloimmune reactions and results in arterial changes that resemble vascular rejection. The basic technical approach we describe can be used with different mouse strains and targeted interventions to answer specific questions related to vascular rejection and TA.
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Affiliation(s)
- Winnie Enns
- Department of Molecular Biology and Biochemistry, Simon Fraser University
| | - Anna von Rossum
- Department of Molecular Biology and Biochemistry, Simon Fraser University
| | - Jonathan Choy
- Department of Molecular Biology and Biochemistry, Simon Fraser University;
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Attenuation of Acute Rat Renal Allograft Rejection by Apolipoprotein E-Mimetic Peptide. Transplantation 2015; 99:925-34. [DOI: 10.1097/tp.0000000000000569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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von Rossum A, Laher I, Choy JC. Immune-mediated vascular injury and dysfunction in transplant arteriosclerosis. Front Immunol 2015; 5:684. [PMID: 25628623 PMCID: PMC4290675 DOI: 10.3389/fimmu.2014.00684] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 12/18/2014] [Indexed: 12/16/2022] Open
Abstract
Solid organ transplantation is the only treatment for end-stage organ failure but this life-saving procedure is limited by immune-mediated rejection of most grafts. Blood vessels within transplanted organs are targeted by the immune system and the resultant vascular damage is a main contributor to acute and chronic graft failure. The vasculature is a unique tissue with specific immunological properties. This review discusses the interactions of the immune system with blood vessels in transplanted organs and how these interactions lead to the development of transplant arteriosclerosis, a leading cause of heart transplant failure.
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Affiliation(s)
- Anna von Rossum
- Department of Molecular Biology and Biochemistry, Simon Fraser University , Burnaby, BC , Canada
| | - Ismail Laher
- Department of Anaesthesiology, Pharmacology and Therapeutics, University of British Columbia , Vancouver, BC , Canada
| | - Jonathan C Choy
- Department of Molecular Biology and Biochemistry, Simon Fraser University , Burnaby, BC , Canada
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